djekl
5/16/2013 - 6:50 PM

ci-encryption-key-generator.php

ci-encryption-key-generator.php
content_copyfile_download
<?php

	/**
	 * Generate an encryption key for CodeIgniter.
	 * http://codeigniter.com/user_guide/libraries/encryption.html
	 */

	// http://www.itnewb.com/v/Generating-Session-IDs-and-Random-Passwords-with-PHP
	function generate_token ($len = 32)
	{

		// Array of potential characters, shuffled.
		$chars = array(
			'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 
			'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
			'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 
			'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
			'0', '1', '2', '3', '4', '5', '6', '7', '8', '9'
		);
		shuffle($chars);

		$num_chars = count($chars) - 1;
		$token = '';

		// Create random token at the specified length.
		for ($i = 0; $i < $len; $i++)
		{
			$token .= $chars[mt_rand(0, $num_chars)];
		}

		return $token;

	}
?><!DOCTYPE html>

<html lang="en-us" dir="ltr">

<head>

	<meta charset="utf-8">

	<title>CodeIgniter encryption key generator</title>
	<meta name="description" content="Generates a random, 32 character string to be used by CodeIgniter&#8217;s encryption class.">

</head>

<body>

	<pre><code><?php echo '$config[\'encryption_key\'] = \'' . generate_token(32) . '\';'; ?></code></pre>

</body>

</html>