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<?php $a = [123,456,789,345,678,901]; $b = [234,567,890,345,678,901]; $d1 = array_diff($a,$b); var_dump(['d1' => $d1]);
Output for git.master, git.master_jit, rfc.property-hooks
array(1) { ["d1"]=> array(3) { [0]=> int(123) [1]=> int(456) [2]=> int(789) } }

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