phpjs/_octopress/source/functions/bin2hex/index.markdown

php.js offers community built php functions in javascript

---
layout: page
title: "JavaScript bin2hex function"
comments: true
sharing: true
footer: true
alias:
- /functions/view/bin2hex:361
- /functions/view/bin2hex
- /functions/view/361
- /functions/bin2hex:361
- /functions/361
---
<!-- Generated by Rakefile:build -->
A JavaScript equivalent of PHP's bin2hex

{% codeblock strings/bin2hex.js lang:js https://raw.github.com/kvz/phpjs/master/functions/strings/bin2hex.js raw on github %}
function bin2hex (s) {
  // From: http://phpjs.org/functions
  // +   original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
  // +   bugfixed by: Onno Marsman
  // +   bugfixed by: Linuxworld
  // +   improved by: ntoniazzi (http://phpjs.org/functions/bin2hex:361#comment_177616)
  // *     example 1: bin2hex('Kev');
  // *     returns 1: '4b6576'
  // *     example 2: bin2hex(String.fromCharCode(0x00));
  // *     returns 2: '00'

  var i, l, o = "", n;

  s += "";

  for (i = 0, l = s.length; i < l; i++) {
    n = s.charCodeAt(i).toString(16)
    o += n.length < 2 ? "0" + n : n;
  }

  return o;
}
{% endcodeblock %}

 - [Raw function on GitHub](https://github.com/kvz/phpjs/blob/master/functions/strings/bin2hex.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/bin2hex.js)

### Example 1
This code
{% codeblock lang:js example %}
bin2hex('Kev');
{% endcodeblock %}

Should return
{% codeblock lang:js returns %}
'4b6576'
{% endcodeblock %}

### Example 2
This code
{% codeblock lang:js example %}
bin2hex(String.fromCharCode(0x00));
{% endcodeblock %}

Should return
{% codeblock lang:js returns %}
'00'
{% endcodeblock %}


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