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<?php $read = array("0" => "master/city", "1" => "master/national_holiday", "2" => "master/operator_comments", "3" => "master/sensors" ); $write = array("0" => "master/city", "1" => "master/national_holiday"); $final = []; array_walk($read,function($v,$k) use (&$final,&$write){ if(array_search($v,$write) > -1){ $final[$v] = 'read/write'; } else{ $final[$v] = 'read'; } }); print_r($final);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [master/city] => read/write [master/national_holiday] => read/write [master/operator_comments] => read [master/sensors] => read )

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