note 116047 added to functions.arguments

An example is given in the user notes for array_map that transposes a rectangular array; it involves unshifting a null onto the start of the array and then calling call_user_func_array. With the parameter-unpacking "..." operator, modifying the array and calling array_map indirectly is no longer needed. Instead of <?php $array = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]; array_unshift($array, null); $transpose = call_user_func_array("array_map", $array); ?> It's enough to write <?php $array = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]; $transpose = array_map(null, ...$array); ?> ---- Server IP: 120.138.27.69 Probable Submitter: 222.155.198.204 ---- Manual Page -- http://php.net/manual/en/functions.arguments.php Edit -- https://master.php.net/note/edit/116047 Del: integrated -- https://master.php.net/note/delete/116047/integrated Del: useless -- https://master.php.net/note/delete/116047/useless Del: bad code -- https://master.php.net/note/delete/116047/bad+code Del: spam -- https://master.php.net/note/delete/116047/spam Del: non-english -- https://master.php.net/note/delete/116047/non-english Del: in docs -- https://master.php.net/note/delete/116047/in+docs Del: other reasons-- https://master.php.net/note/delete/116047 Reject -- https://master.php.net/note/reject/116047 Search -- https://master.php.net/manage/user-notes.php