I created this class primarily to generate random salts for passwords, but it can be used quite easily to create random strings of any length that you specify.
<?php
/**
* clsSalt
*
* @package
* @author Satal Keto
* @copyright 2008
* @version v1.00.002
* @access public
*/
class clsSalt
{
/**
* clsSalt::generateSalt()
* A static function which generates salt's
*
* @param Integer $saltLen
* @return String, The salt which was requested
*/
public static function generateSalt($saltLen = 32)
{
$chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789`¬¦!"£$%^&*()-_=+[{}]#~;:'@,<.>/?\";
srand((double)microtime()*1000000);
$i = 0;
$salt = '' ;
//Because $i is 0 we use < rather than <= as otherwise we would get $saltLen + 1
while ($i < $saltLen)
{
$num = rand() % strlen($chars);
$char = substr($chars, $num, 1);
$salt = $salt . $char;
$i++;
}
return $salt;
}
}
?>
