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<?php $all = [ '1', '2', '3', '4', ]; $new = [ '3', '2', '5', ]; $toRemove = array_diff($new, $all); $toAdd = array_intersect($all, $new); print_r($toAdd); print_r($toRemove);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [1] => 2 [2] => 3 ) Array ( [2] => 5 )

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