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<?php $my_array = ['A1'=>'Data1','A2'=>'Data2','A3'=>'Data3','A4'=>'Data4','A5'=>'Data5']; $allowed = ['0'=>'A1','1'=>'A2','2'=>'A3']; $filtered = array_filter( $my_array, function ($key) use ($allowed) { return in_array($key, $allowed); }, ARRAY_FILTER_USE_KEY ); var_dump($filtered);
Output for git.master, git.master_jit, rfc.property-hooks
array(3) { ["A1"]=> string(5) "Data1" ["A2"]=> string(5) "Data2" ["A3"]=> string(5) "Data3" }

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