Online PHP editor | refs for 9pY75

<?php $a = 'acdmnprst'; $b = 'abcdefghijlmnopqrstuvz'; $al = strlen($a); $bl = strlen($b); $vowels = array('a', 'e', 'i', 'o', 'u', 'y'); for ($i = 0; $i < $al; $i++) { for ($j = 0; $j < $bl; $j++) { for ($k = 0; $k < $bl; $k++) { $arr = array($b[$j], $b[$k], $a[$i]); if (0 === count(array_intersect($arr, $vowels))) { echo $b[$j] . $b[$k] . $a[$i] . "\n"; } } } }