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<?php $a = ['asdasd' => 4231, 'wqewqe' => 1283]; $b = ['wqewqe' => 123, 'asdasd' => 4231]; var_dump(array_diff($a, $b));
Output for git.master, git.master_jit, rfc.property-hooks
array(1) { ["wqewqe"]=> int(1283) }

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