Online PHP editor | refs for 24n0T

@ 2017-07-10T12:08:01Z

<?php

$x = [
    'a',
    'b',
];

$y = [
    'a',
    'c',
];

$z = [
];

foreach ($x as $xval) {
    foreach($y as $yval) {
        if ($xval === $yval) {
            continue 2;
        }
    }
    
    $z[] = [$xval, $yval];
}

var_dump($z);