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<?php $array = array("a" => 2, "b" => 4, "c" => 2, "d" => 5, "e" => 6, "f" => 2); var_export(array_intersect($array, [2]));
Output for git.master, git.master_jit, rfc.property-hooks
array ( 'a' => 2, 'c' => 2, 'f' => 2, )

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