How to generate a random password in PHP

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14

function randomPassword($length = 8, $seed = '') {
	$password = "";
	$possible = "0123456789";
	$i = 0;
	mt_srand(($seed == '') ? rand() : $seed);
	while ($i < $length) {
		$char = substr($possible, mt_rand(0, strlen($possible) - 1), 1);
		if (!strstr($password, $char)) {
			$password .= $char;
			$i++;
		}
	}
	return $password;
}