This can generate random password.

<?php function randomPassword() { $alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; $pass = array(); $alphaLength = strlen($alphabet) - 1; for ($i = 0; $i < 26; $i++) { $n = rand(0, $alphaLength); $pass[] = $alphabet[$n]; } return implode($pass); } echo randomPassword(); ?> 

But I want to save this password…