phpjs/_octopress/source/functions/strtok/index.markdown

php.js offers community built php functions in javascript

---
layout: page
title: "JavaScript strtok function"
comments: true
sharing: true
footer: true
alias:
- /functions/view/strtok:552
- /functions/view/strtok
- /functions/view/552
- /functions/strtok:552
- /functions/552
---
<!-- Generated by Rakefile:build -->
A JavaScript equivalent of PHP's strtok

{% codeblock strings/strtok.js lang:js https://raw.github.com/kvz/phpjs/master/functions/strings/strtok.js raw on github %}
function strtok (str, tokens) {
  // From: http://phpjs.org/functions
  // +   original by: Brett Zamir (http://brett-zamir.me)
  // %        note 1: Use tab and newline as tokenizing characters as well
  // *     example 1: $string = "\t\t\t\nThis is\tan example\nstring\n";
  // *     example 1: $tok = strtok($string, " \n\t");
  // *     example 1: $b = '';
  // *     example 1: while ($tok !== false) {$b += "Word="+$tok+"\n"; $tok = strtok(" \n\t");}
  // *     example 1: $b
  // *     returns 1: "Word=This\nWord=is\nWord=an\nWord=example\nWord=string\n"
  // BEGIN REDUNDANT
  this.php_js = this.php_js || {};
  // END REDUNDANT
  if (tokens === undefined) {
    tokens = str;
    str = this.php_js.strtokleftOver;
  }
  if (str.length === 0) {
    return false;
  }
  if (tokens.indexOf(str.charAt(0)) !== -1) {
    return this.strtok(str.substr(1), tokens);
  }
  for (var i = 0; i < str.length; i++) {
    if (tokens.indexOf(str.charAt(i)) !== -1) {
      break;
    }
  }
  this.php_js.strtokleftOver = str.substr(i + 1);
  return str.substring(0, i);
}
{% endcodeblock %}

 - [Raw function on GitHub](https://github.com/kvz/phpjs/blob/master/functions/strings/strtok.js)

Please note that php.js uses JavaScript objects as substitutes for PHP arrays, they are 
the closest match to this hashtable-like data structure. 

Please also note that php.js offers community built functions and goes by the 
[McDonald's Theory](https://medium.com/what-i-learned-building/9216e1c9da7d). We'll put online 
functions that are far from perfect, in the hopes to spark better contributions. 
Do you have one? Then please just: 

 - [Edit on GitHub](https://github.com/kvz/phpjs/edit/master/functions/strings/strtok.js)

### Example 1
This code
{% codeblock lang:js example %}
$string = "\t\t\t\nThis is\tan example\nstring\n";
$tok = strtok($string, " \n\t");
$b = '';
while ($tok !== false) {$b += "Word="+$tok+"\n"; $tok = strtok(" \n\t");}
$b
{% endcodeblock %}

Should return
{% codeblock lang:js returns %}
"Word=This\nWord=is\nWord=an\nWord=example\nWord=string\n"
{% endcodeblock %}


### Other PHP functions in the strings extension
{% render_partial _includes/custom/strings.html %}