PHP password generator

php-password-generator.php

<?php
function generatePassword($length, $strength) 
{
	$vowels = 'aeuy';
	$consonants = 'bdghjmnpqrstvz';
	if ($strength & 1) 
	{
		$consonants .= 'BDGHJLMNPQRSTVWXZ';
	}
	if ($strength & 2) 
	{
		$vowels .= "AEUY";
	}
	if ($strength & 4) 
	{
		$consonants .= '23456789';
	}
	if ($strength & 8) 
	{
		$consonants .= '@#$%';
	}
	$password = '';
	$alt = time() % 2;
	for ($i = 0; $i < $length; $i++) 
	{
		if ($alt == 1) 
		{
			$password .= $consonants[(rand() % strlen($consonants))];
			$alt = 0;
		} 
		else 
		{
			$password .= $vowels[(rand() % strlen($vowels))];
			$alt = 1;
		}
	}
	return $password;
}
	echo generatePassword(6,4);
?>