- var_dump: documentation ( source)
- password_hash: documentation ( source)
- str_pad: documentation ( source)
<?php
$passw = str_pad('x', 70);
var_dump(password_hash($passw, PASSWORD_DEFAULT, ['salt' => 'foo']));
$passw = str_pad('x', 80);
var_dump(password_hash($passw, PASSWORD_DEFAULT, ['salt' => 'foo']));
$passw = str_pad('x', 90);
var_dump(password_hash($passw, PASSWORD_DEFAULT, ['salt' => 'foo']));