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运算符
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算数运算符
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比较运算符
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错误控制运算符
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执行运算符
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递增递减运算符
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逻辑运算符
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字符串运算符
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数组运算符
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类型运算符
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流程控制
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while
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do-while
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foreach
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switch
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流程控制的替代语法
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declare
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return
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require
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include
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require_once
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include_once
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goto
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<a href="../../../语言参考/函数.html">
函数
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用户自定义函数
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函数的参数
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返回值
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可变函数
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匿名函数
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类与对象
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基本语法
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属性
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类常量
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类的自动加载
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构造函数和析构函数
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访问控制
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<a href="../../../语言参考/类与对象/对象继承.html">
对象继承
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<a href="../../../语言参考/类与对象/范围解析操作符.html">
范围解析操作符
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<a href="../../../语言参考/类与对象/Static 关键字.html">
Static 关键字
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<a href="../../../语言参考/类与对象/抽象类.html">
抽象类
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<li class="chapter " data-level="1.1.1.9.11" data-path="../../../语言参考/类与对象/对象接口.html">
<a href="../../../语言参考/类与对象/对象接口.html">
对象接口
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<li class="chapter " data-level="1.1.1.9.12" data-path="../../../语言参考/类与对象/Trait.html">
<a href="../../../语言参考/类与对象/Trait.html">
Trait
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<a href="../../../语言参考/类与对象/匿名类.html">
匿名类
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<li class="chapter " data-level="1.1.1.9.14" data-path="../../../语言参考/类与对象/重载.html">
<a href="../../../语言参考/类与对象/重载.html">
重载
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<li class="chapter " data-level="1.1.1.9.15" data-path="../../../语言参考/类与对象/遍历对象.html">
<a href="../../../语言参考/类与对象/遍历对象.html">
遍历对象
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<li class="chapter " data-level="1.1.1.9.16" data-path="../../../语言参考/类与对象/魔术方法.html">
<a href="../../../语言参考/类与对象/魔术方法.html">
魔术方法
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<li class="chapter " data-level="1.1.1.9.17" data-path="../../../语言参考/类与对象/Final 关键字.html">
<a href="../../../语言参考/类与对象/Final 关键字.html">
Final 关键字
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<li class="chapter " data-level="1.1.1.9.18" data-path="../../../语言参考/类与对象/对象复制.html">
<a href="../../../语言参考/类与对象/对象复制.html">
对象复制
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<li class="chapter " data-level="1.1.1.9.19" data-path="../../../语言参考/类与对象/对象比较.html">
<a href="../../../语言参考/类与对象/对象比较.html">
对象比较
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<h1>
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<a href="../../../.." >PDO</a>
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<section class="normal markdown-section">
<h1 id="pdo">PDO</h1>
<ul>
<li><a href="#pdo">PDO</a><ul>
<li><a href="#pdoconstruct">PDO::__construct - 创建一个表示数据库连接的 PDO 实例</a></li>
<li><a href="#pdobegintransaction">PDO::beginTransaction - 开启一个事务</a></li>
<li><a href="#pdocommit">PDO::commit - 提交一个事务</a></li>
<li><a href="#pdoerrorcode">PDO::errorCode - 获取跟数据库句柄上一次操作相关的 SQLSTATE</a></li>
<li><a href="#pdoerrorinfo">PDO::errorInfo - 获取与跟据库句柄上一次操作相关的扩展错误信息</a></li>
<li><a href="#pdoexec">PDO::exec - 执行 SQL 语句，并返回受影响的行数</a></li>
<li><a href="#pdogetattribute">PDO::getAttribute - 取回一个数据库连接的属性</a></li>
<li><a href="#pdogetavailabledrivers">PDO::getAvailableDrivers - 返回一个可用驱动的数组</a></li>
<li><a href="#pdointransaction">PDO::inTransaction - 检查是否在一个事务内</a></li>
<li><a href="#pdolastinsertid">PDO::lastInsertId - 返回最后插入行的 ID 或序列值</a></li>
<li><a href="#pdoprepare">PDO::prepare - 准备要执行的语句，并返回语句对象</a></li>
<li><a href="#pdoquery">PDO::query - 执行 SQL 语句，以 PDOStatement 对象形式返回结果集</a></li>
<li><a href="#pdoquote">PDO::quote - 为 SQL 查询里的字符串添加引号</a></li>
<li><a href="#pdorollback">PDO::rollBack - 回滚一个事务</a></li>
<li><a href="#pdosetattribute">PDO::setAttribute - 设置属性</a></li>
</ul>
</li>
<li><a href="#pdostatement">PDOStatement</a><ul>
<li><a href="#pdostatementbindcolumn">PDOStatement::bindColumn - 绑定一列到一个 PHP 变量</a></li>
<li><a href="#pdostatementbindparam">PDOStatement::bindParam - 绑定一个参数到指定的变量名</a></li>
<li><a href="#pdostatementbindvalue">PDOStatement::bindValue - 把一个值绑定到一个参数</a></li>
<li><a href="#pdostatementclosecursor">PDOStatement::closeCursor - 关闭游标，使语句能再次被执行</a></li>
<li><a href="#pdostatementcolumncount">PDOStatement::columnCount - 返回结果集中的列数</a></li>
<li><a href="#pdostatementdebugdumpparams">PDOStatement::debugDumpParams - 打印一条 SQL 预处理命令</a></li>
<li><a href="#pdostatementerrorcode">PDOStatement::errorCode - 获取跟上一次语句句柄操作相关的 SQLSTATE</a></li>
<li><a href="#pdostatementerrorinfo">PDOStatement::errorInfo - 获取跟上一次语句句柄操作相关的扩展错误信息</a></li>
<li><a href="#pdostatementexecute">PDOStatement::execute - 执行一条预处理语句</a></li>
<li><a href="#pdostatementfetch">PDOStatement::fetch - 从结果集中获取下一行</a></li>
<li><a href="#pdostatementfetchall">PDOStatement::fetchAll - 返回一个包含结果集中所有行的数组</a></li>
<li><a href="#pdostatementfetchcolumn">PDOStatement::fetchColumn - 从结果集中的下一行返回单独的一列</a></li>
<li><a href="#pdostatementfetchobject">PDOStatement::fetchObject - 获取下一行并作为一个对象返回</a></li>
<li><a href="#pdostatementgetcolumnmeta">PDOStatement::getColumnMeta - 返回结果集中一列的元数据</a></li>
<li><a href="#pdostatementnextrowset">PDOStatement::nextRowset - 在一个多行集语句句柄中推进到下一个行集</a></li>
<li><a href="#pdostatementrowcount">PDOStatement::rowCount - 返回受上一个 SQL 语句影响的行数</a></li>
<li><a href="#pdostatementsetfetchmode">PDOStatement::setFetchMode - 为语句设置默认的获取模式</a></li>
</ul>
</li>
</ul>
<h2 id="pdo">PDO</h2>
<h3 id="pdoconstruct">PDO::__construct</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
</code></pre>
<h3 id="pdobegintransaction">PDO::beginTransaction</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">beginTransaction</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// bool(true)</span>
</code></pre>
<h3 id="pdocommit">PDO::commit</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">beginTransaction</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">exec</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"UPDATE users SET name = 'Jerry' WHERE id = 1"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">commit</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// bool(true)</span>
</code></pre>
<h3 id="pdoerrorcode">PDO::errorCode</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">errorCode</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre>
<h3 id="pdoerrorinfo">PDO::errorInfo</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">errorInfo</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre>
<h3 id="pdoexec">PDO::exec</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">exec</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"UPDATE users SET name = 'Jerry' WHERE id = 1"</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// int(1)</span>
</code></pre>
<h3 id="pdogetattribute">PDO::getAttribute</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getAttribute</span><span class="token punctuation">(</span><span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">ATTR_AUTOCOMMIT</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getAttribute</span><span class="token punctuation">(</span><span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">ATTR_CASE</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getAttribute</span><span class="token punctuation">(</span><span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">ATTR_CLIENT_VERSION</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre>
<h3 id="pdogetavailabledrivers">PDO::getAvailableDrivers</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token function">getAvailableDrivers</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getAvailableDrivers</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre>
<h3 id="pdointransaction">PDO::inTransaction</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">inTransaction</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// bool(false)</span>
<span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">beginTransaction</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">inTransaction</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// bool(true)</span>
</code></pre>
<h3 id="pdolastinsertid">PDO::lastInsertId</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">lastInsertId</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre>
<h3 id="pdoprepare">PDO::prepare</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">prepare</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"SELECT * FROM users WHERE id = :id"</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// object(PDOStatement)#2 (1) { ["queryString"]=> string(34) "SELECT * FROM users WHERE id = :id" }</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">prepare</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"SELECT * FROM users WHERE id = ?"</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// object(PDOStatement)#2 (1) { ["queryString"]=> string(32) "SELECT * FROM users WHERE id = ?" }</span>
</code></pre>
<h3 id="pdoquery">PDO::query</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">query</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"SELECT * FROM users"</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// object(PDOStatement)#2 (1) { ["queryString"]=> string(19) "SELECT * FROM users" }</span>
<span class="token keyword">foreach</span> <span class="token punctuation">(</span><span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">query</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"SELECT * FROM users"</span><span class="token punctuation">)</span> <span class="token keyword">as</span> <span class="token variable">$row</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$row</span><span class="token punctuation">[</span><span class="token single-quoted-string string">'id'</span><span class="token punctuation">]</span><span class="token punctuation">,</span> <span class="token variable">$row</span><span class="token punctuation">[</span><span class="token single-quoted-string string">'name'</span><span class="token punctuation">]</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
</code></pre>
<h3 id="pdoquote">PDO::quote</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token variable">$string</span> <span class="token operator">=</span> <span class="token single-quoted-string string">'foo'</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">quote</span><span class="token punctuation">(</span><span class="token variable">$string</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// string(5) "'foo'"</span>
</code></pre>
<h3 id="pdorollback">PDO::rollBack</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">beginTransaction</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">exec</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"UPDATE users SET name = 'Jerry' WHERE id = 1"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">rollBack</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// bool(true)</span>
</code></pre>
<h3 id="pdosetattribute">PDO::setAttribute</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">setAttribute</span><span class="token punctuation">(</span><span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">ATTR_CASE</span><span class="token punctuation">,</span> <span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">CASE_LOWER</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// bool(true)</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">setAttribute</span><span class="token punctuation">(</span><span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">ATTR_CASE</span><span class="token punctuation">,</span> <span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">CASE_UPPER</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// bool(true)</span>
</code></pre>
<h2 id="pdostatement">PDOStatement</h2>
<h3 id="pdostatementbindcolumn">PDOStatement::bindColumn</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token variable">$sth</span> <span class="token operator">=</span> <span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">prepare</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"SELECT * FROM users"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">bindColumn</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'id'</span><span class="token punctuation">,</span> <span class="token variable">$id</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// bool(true)</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">bindColumn</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'name'</span><span class="token punctuation">,</span> <span class="token variable">$name</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// bool(true)</span>
<span class="token keyword">while</span> <span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">fetch</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token function">sprintf</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'#%d %s'</span><span class="token punctuation">,</span> <span class="token variable">$id</span><span class="token punctuation">,</span> <span class="token variable">$name</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
</code></pre>
<h3 id="pdostatementbindparam">PDOStatement::bindParam</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token variable">$sth</span> <span class="token operator">=</span> <span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">prepare</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"SELECT * FROM users WHERE id = :id AND name = :name"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$id</span> <span class="token operator">=</span> <span class="token number">1</span><span class="token punctuation">;</span>
<span class="token variable">$name</span> <span class="token operator">=</span> <span class="token single-quoted-string string">'Tom'</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">bindParam</span><span class="token punctuation">(</span><span class="token single-quoted-string string">':id'</span><span class="token punctuation">,</span> <span class="token variable">$id</span><span class="token punctuation">,</span> <span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">PARAM_INT</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// bool(true)</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">bindParam</span><span class="token punctuation">(</span><span class="token single-quoted-string string">':name'</span><span class="token punctuation">,</span> <span class="token variable">$name</span><span class="token punctuation">,</span> <span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">PARAM_STR</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// bool(true)</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">fetchAll</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span> <span class="token operator">=</span> <span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">prepare</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"SELECT * FROM users WHERE id = ? AND name = ?"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$id</span> <span class="token operator">=</span> <span class="token number">1</span><span class="token punctuation">;</span>
<span class="token variable">$name</span> <span class="token operator">=</span> <span class="token single-quoted-string string">'Tom'</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">bindParam</span><span class="token punctuation">(</span><span class="token number">1</span><span class="token punctuation">,</span> <span class="token variable">$id</span><span class="token punctuation">,</span> <span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">PARAM_INT</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// bool(true)</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">bindParam</span><span class="token punctuation">(</span><span class="token number">2</span><span class="token punctuation">,</span> <span class="token variable">$name</span><span class="token punctuation">,</span> <span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">PARAM_STR</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// bool(true)</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">fetchAll</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre>
<h3 id="pdostatementbindvalue">PDOStatement::bindValue</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token variable">$sth</span> <span class="token operator">=</span> <span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">prepare</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"SELECT * FROM users WHERE id = :id AND name = :name"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">bindValue</span><span class="token punctuation">(</span><span class="token single-quoted-string string">':id'</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">PARAM_INT</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// bool(true)</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">bindValue</span><span class="token punctuation">(</span><span class="token single-quoted-string string">':name'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'Tom'</span><span class="token punctuation">,</span> <span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">PARAM_STR</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// bool(true)</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">fetchAll</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span> <span class="token operator">=</span> <span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">prepare</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"SELECT * FROM users WHERE id = ? AND name = ?"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">bindValue</span><span class="token punctuation">(</span><span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">PARAM_INT</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// bool(true)</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">bindValue</span><span class="token punctuation">(</span><span class="token number">2</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'Tom'</span><span class="token punctuation">,</span> <span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">PARAM_STR</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// bool(true)</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">fetchAll</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre>
<h3 id="pdostatementclosecursor">PDOStatement::closeCursor</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token variable">$sth</span> <span class="token operator">=</span> <span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">prepare</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"SELECT * FROM users"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">fetch</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">closeCursor</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// bool(true)</span>
</code></pre>
<h3 id="pdostatementcolumncount">PDOStatement::columnCount</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token variable">$sth</span> <span class="token operator">=</span> <span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">prepare</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"SELECT * FROM users"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">columnCount</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre>
<h3 id="pdostatementdebugdumpparams">PDOStatement::debugDumpParams</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token variable">$sth</span> <span class="token operator">=</span> <span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">prepare</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"SELECT * FROM users WHERE id = :id AND name = :name"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">bindValue</span><span class="token punctuation">(</span><span class="token single-quoted-string string">':id'</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">PARAM_INT</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">bindValue</span><span class="token punctuation">(</span><span class="token single-quoted-string string">':name'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'Tom'</span><span class="token punctuation">,</span> <span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">PARAM_STR</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">debugDumpParams</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre>
<h3 id="pdostatementerrorcode">PDOStatement::errorCode</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token variable">$sth</span> <span class="token operator">=</span> <span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">prepare</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"SELECT * FROM users"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">errorCode</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// string(5) "00000"</span>
</code></pre>
<h3 id="pdostatementerrorinfo">PDOStatement::errorInfo</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token variable">$sth</span> <span class="token operator">=</span> <span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">prepare</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"SELECT * FROM users"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">errorInfo</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// array(3) { [0]=> string(5) "00000" [1]=> NULL [2]=> NULL }</span>
</code></pre>
<h3 id="pdostatementexecute">PDOStatement::execute</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token variable">$sth</span> <span class="token operator">=</span> <span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">prepare</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"SELECT * FROM users WHERE id = :id AND name = :name"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">bindValue</span><span class="token punctuation">(</span><span class="token single-quoted-string string">':id'</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">PARAM_INT</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">bindValue</span><span class="token punctuation">(</span><span class="token single-quoted-string string">':name'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'Tom'</span><span class="token punctuation">,</span> <span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">PARAM_STR</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// bool(true)</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">fetchAll</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span> <span class="token operator">=</span> <span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">prepare</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"SELECT * FROM users WHERE id = :id AND name = :name"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">[</span><span class="token single-quoted-string string">':id'</span> <span class="token operator">=</span><span class="token operator">></span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">':name'</span> <span class="token operator">=</span><span class="token operator">></span> <span class="token single-quoted-string string">'Tom'</span><span class="token punctuation">]</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// bool(true)</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">fetchAll</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span> <span class="token operator">=</span> <span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">prepare</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"SELECT * FROM users WHERE id = ? AND name = ?"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">bindValue</span><span class="token punctuation">(</span><span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">PARAM_INT</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">bindValue</span><span class="token punctuation">(</span><span class="token number">2</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'Tom'</span><span class="token punctuation">,</span> <span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">PARAM_STR</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// bool(true)</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">fetchAll</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span> <span class="token operator">=</span> <span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">prepare</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"SELECT * FROM users WHERE id = ? AND name = ?"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">[</span><span class="token number">1</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'Tom'</span><span class="token punctuation">]</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// bool(true)</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">fetchAll</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre>
<h3 id="pdostatementfetch">PDOStatement::fetch</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token variable">$sth</span> <span class="token operator">=</span> <span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">prepare</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"SELECT * FROM users"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">fetch</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">fetch</span><span class="token punctuation">(</span><span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">FETCH_ASSOC</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">fetch</span><span class="token punctuation">(</span><span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">FETCH_OBJ</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre>
<h3 id="pdostatementfetchall">PDOStatement::fetchAll</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">class</span> <span class="token class-name">Foo</span>
<span class="token punctuation">{</span>
<span class="token comment">//</span>
<span class="token punctuation">}</span>
<span class="token comment">/**
* Return formatted string.
*
* @param int $id
* @param string $name
* @return string
*/</span>
<span class="token keyword">function</span> <span class="token function">foo</span><span class="token punctuation">(</span>int <span class="token variable">$id</span><span class="token punctuation">,</span> string <span class="token variable">$name</span><span class="token punctuation">)</span><span class="token punctuation">:</span> string
<span class="token punctuation">{</span>
<span class="token keyword">return</span> <span class="token function">sprintf</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'#%d %s'</span><span class="token punctuation">,</span> <span class="token variable">$id</span><span class="token punctuation">,</span> <span class="token variable">$name</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token variable">$sth</span> <span class="token operator">=</span> <span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">prepare</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"SELECT * FROM users"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">fetchAll</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">fetchAll</span><span class="token punctuation">(</span><span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">FETCH_ASSOC</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">fetchAll</span><span class="token punctuation">(</span><span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">FETCH_COLUMN</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">fetchAll</span><span class="token punctuation">(</span><span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">FETCH_COLUMN</span> <span class="token operator">|</span> <span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">FETCH_GROUP</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">fetchAll</span><span class="token punctuation">(</span><span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">FETCH_CLASS</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'Foo'</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">fetchAll</span><span class="token punctuation">(</span><span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">FETCH_FUNC</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'foo'</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre>
<h3 id="pdostatementfetchcolumn">PDOStatement::fetchColumn</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token variable">$sth</span> <span class="token operator">=</span> <span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">prepare</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"SELECT * FROM users"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">fetchColumn</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">fetchColumn</span><span class="token punctuation">(</span><span class="token number">1</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre>
<h3 id="pdostatementfetchobject">PDOStatement::fetchObject</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">class</span> <span class="token class-name">Foo</span>
<span class="token punctuation">{</span>
<span class="token comment">//</span>
<span class="token punctuation">}</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token variable">$sth</span> <span class="token operator">=</span> <span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">prepare</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"SELECT * FROM users"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">fetchObject</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">fetchObject</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'Foo'</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre>
<h3 id="pdostatementgetcolumnmeta">PDOStatement::getColumnMeta</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token variable">$sth</span> <span class="token operator">=</span> <span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">prepare</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"SELECT * FROM users"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getColumnMeta</span><span class="token punctuation">(</span><span class="token number">0</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getColumnMeta</span><span class="token punctuation">(</span><span class="token number">1</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre>
<h3 id="pdostatementnextrowset">PDOStatement::nextRowset</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token variable">$sth</span> <span class="token operator">=</span> <span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">prepare</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"SELECT * FROM users"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">fetch</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">nextRowset</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">fetch</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre>
<h3 id="pdostatementrowcount">PDOStatement::rowCount</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token variable">$sth</span> <span class="token operator">=</span> <span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">prepare</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"UPDATE users SET name = :name WHERE id = :id"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">bindValue</span><span class="token punctuation">(</span><span class="token single-quoted-string string">':name'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'Jerry'</span><span class="token punctuation">,</span> <span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">PARAM_STR</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">bindValue</span><span class="token punctuation">(</span><span class="token single-quoted-string string">':id'</span><span class="token punctuation">,</span> <span class="token number">1</span><span class="token punctuation">,</span> <span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">PARAM_INT</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">rowCount</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// int(1)</span>
</code></pre>
<h3 id="pdostatementsetfetchmode">PDOStatement::setFetchMode</h3>
<pre class="language-"><code class="lang-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">try</span> <span class="token punctuation">{</span>
<span class="token variable">$dbh</span> <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">PDO</span><span class="token punctuation">(</span><span class="token single-quoted-string string">'mysql:host=127.0.0.1;port=3306;dbname=test'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">,</span> <span class="token single-quoted-string string">'root'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span> <span class="token keyword">catch</span> <span class="token punctuation">(</span>PDOException <span class="token variable">$e</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
<span class="token keyword">echo</span> <span class="token variable">$e</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">getMessage</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span>
<span class="token variable">$sth</span> <span class="token operator">=</span> <span class="token variable">$dbh</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">prepare</span><span class="token punctuation">(</span><span class="token double-quoted-string string">"SELECT * FROM users"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">setFetchMode</span><span class="token punctuation">(</span><span class="token constant">PDO</span><span class="token punctuation">:</span><span class="token punctuation">:</span><span class="token constant">FETCH_ASSOC</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token comment">// bool(true)</span>
<span class="token function">var_dump</span><span class="token punctuation">(</span><span class="token variable">$sth</span><span class="token operator">-</span><span class="token operator">></span><span class="token function">fetchAll</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre>
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