- var_dump: documentation ( source)
- bindec: documentation ( source)
<?php
$manager = bindec('000010000000000000000000000000');
$roles = bindec('000011110000100100000000000000');
$isManager = ($roles & $manager) !== 0;
var_dump($isManager);
$roles = bindec('000001110000100100000000000000');
$isManager = ($roles & $manager) !== 0;
var_dump($isManager);