- var_dump: documentation ( source)
- sha1: documentation ( source)
- md5: documentation ( source)
<?php
$h1 = md5('BRTKUJZ');
$h2 = md5('NOOPCJF');
$h3 = sha1('BRTKUJZ');
$h4 = sha1('NOOPCJF');
var_dump($h1, $h2, $h1 == $h2, $h1 === $h2, $h3, $h4, $h3 == $h4, $h3 === $h4);