manual-php
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# Session
* [session_abort - 放弃会话数组的修改并结束会话](#sessionabort)
* [session_cache_expire - 返回当前缓存的到期时间](#sessioncacheexpire)
* [session_cache_limiter - 读取 / 设置缓存限制器](#sessioncachelimiter)
* [session_commit - 写入会话数据并结束会话](#sessioncommit)
* [session_create_id - 创建新的会话 ID](#sessioncreateid)
* [session_decode - 解码会话数据](#sessiondecode)
* [session_destroy - 销毁一个会话中的全部数据](#sessiondestroy)
* [session_encode - 将当前会话数据编码为一个字符串](#sessionencode)
* [session_gc - 执行会话数据垃圾回收](#sessiongc)
* [session_get_cookie_params - 获取会话 Cookie 参数](#sessiongetcookieparams)
* [session_id - 获取 / 设置当前会话 ID](#sessionid)
* [session_module_name - 获取 / 设置会话模块名称](#sessionmodulename)
* [session_name - 读取 / 设置会话名称](#sessionname)
* [session_regenerate_id - 使用新生成的会话 ID 更新现有会话 ID](#sessionregenerateid)
* [session_register_shutdown - 关闭会话](#sessionregistershutdown)
* [session_reset - 使用原始值重新初始化会话数组](#sessionreset)
* [session_save_path - 读取 / 设置当前会话的保存路径](#sessionsavepath)
* [session_set_cookie_params - 设置会话 Cookie 参数](#sessionsetcookieparams)
* [session_set_save_handler - 设置用户自定义会话存储函数](#sessionsetsavehandler)
* [session_start - 启动新会话或者重用现有会话](#sessionstart)
* [session_status - 返回当前会话状态](#sessionstatus)
* [session_unset - 释放所有的会话变量](#sessionunset)
* [session_write_close - 写入会话数据并结束会话](#sessionwriteclose)
## session_abort
```php
session_start();
$_SESSION['foo'] = 'foo';
session_commit();
session_start();
$_SESSION['foo'] = 'bar';
session_abort();
session_start();
var_dump($_SESSION['foo']); // string(3) "foo"
```
## session_cache_expire
```php
var_dump(session_cache_expire(60)); // int(180)
var_dump(session_cache_expire()); // int(60)
```
## session_cache_limiter
```php
var_dump(session_cache_limiter('private')); // string(7) "nocache"
var_dump(session_cache_limiter()); // string(7) "private"
```
## session_commit
```php
session_start();
$_SESSION['foo'] = 'foo';
$_SESSION['bar'] = 'bar';
var_dump(session_commit()); // bool(true)
```
## session_create_id
```php
var_dump(session_create_id());
var_dump(session_create_id('prefix-'));
```
## session_decode
```php
session_start();
var_dump(session_decode('foo|s:3:"foo";bar|s:3:"bar";')); // bool(true)
var_dump($_SESSION['foo']); // string(3) "foo"
var_dump($_SESSION['bar']); // string(3) "bar"
```
## session_destory
```php
session_start();
$_SESSION['foo'] = 'foo';
$_SESSION['bar'] = 'bar';
session_commit();
session_start();
var_dump($_SESSION['foo']); // string(3) "foo"
var_dump($_SESSION['bar']); // string(3) "bar"
var_dump(session_destroy()); // bool(true)
var_dump($_SESSION['foo']); // string(3) "foo"
var_dump($_SESSION['bar']); // string(3) "bar"
```
## session_encode
```php
session_start();
$_SESSION['foo'] = 'foo';
$_SESSION['bar'] = 'bar';
var_dump(session_encode()); // string(28) "foo|s:3:"foo";bar|s:3:"bar";"
```
## session_gc
```php
session_start();
var_dump(session_gc());
```
## session_get_cookie_params
```php
var_dump(session_get_cookie_params());
```
## session_id
```php
var_dump(session_id(session_create_id()));
var_dump(session_id());
```
## session_module_name
```php
var_dump(session_module_name('files')); // string(5) "files"
var_dump(session_module_name()); // string(5) "files"
```
## session_name
```php
var_dump(session_name('PHPSESSID')); // string(9) "PHPSESSID"
var_dump(session_name()); // string(9) "PHPSESSID"
```
## session_regenerate_id
```php
session_start();
var_dump(session_regenerate_id()); // bool(true)
var_dump(session_regenerate_id(true)); // bool(true)
```
## session_register_shutdown
```php
var_dump(session_register_shutdown());
```
## session_reset
```php
session_start();
$_SESSION['foo'] = 'foo';
session_commit();
session_start();
$_SESSION['foo'] = 'bar';
session_reset();
var_dump($_SESSION['foo']); // string(3) "foo"
```
## session_save_path
```php
var_dump(session_save_path(__DIR__));
var_dump(session_save_path());
```
## session_set_cookie_params
```php
var_dump(session_set_cookie_params(3600, '/', '.github.com', true, true)); // bool(true)
```
## session_set_save_handler
```php
$handle = new SessionHandler();
var_dump(session_set_save_handler($handle, true)); // bool(true)
```
## session_start
```php
var_dump(session_start()); // bool(true)
```
## session_status
```php
var_dump(session_status());
```
## session_unset
```php
session_start();
$_SESSION['foo'] = 'foo';
$_SESSION['bar'] = 'bar';
session_unset();
var_dump($_SESSION['foo']); // NULL
var_dump($_SESSION['bar']); // NULL
```
## session_write_close
```php
session_start();
$_SESSION['foo'] = 'foo';
$_SESSION['bar'] = 'bar';
var_dump(session_write_close()); // bool(true)
```