- var_dump: documentation ( source)
- password_hash: documentation ( source)
- password_verify: documentation ( source)
- implode: documentation ( source)
- array_fill: documentation ( source)
<?php
$password = implode('', array_fill(0, 72, 'a'));
$hash = password_hash($password, PASSWORD_BCRYPT);
var_dump(password_verify($password . 'not valid', $hash));