PHP Version of devise/lib/devise/encryptors/restful_authentication_sha1.rb for Older Versions of Devise

Devise.sha1.php

define('_DIGEST_PEPPER','PEPPER HERE');
	
function digest($password, $stretches, $salt, $pepper)
{
	$digest = $pepper;
	
	$x = 0;
	while($x != $stretches)
	{
		$data = array($digest,$salt,$password,$pepper);
	
		$digest = sha1(implode('--',$data));
	
		$x++;
	}
	
	return $digest;
}

digest($pass,10,$password_salt,_DIGEST_PEPPER);