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<?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);
Output for git.master, git.master_jit, rfc.property-hooks
array(1) { [0]=> array(2) { [0]=> string(1) "b" [1]=> string(1) "c" } }

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