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<?php $first = array(0 => 21, 1 => 2, 2 => 1, 3 => 2); $second = array(0 => 21, 1 => 2); foreach ($second as $v) { unset($first[array_search($v, $first)]); } print_r($first);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [2] => 1 [3] => 2 )

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