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<?php $a = ['a','b','c','d','e','f']; $b = ['a','e']; $dic = array_flip($b); $result = array_filter($a, function($v)use($dic){return !isset($dic[$v]);}); print_r($result);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [1] => b [2] => c [3] => d [5] => f )

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