note 110933 added to function.array-walk

here is a simple and yet easy to use implementation of this function. the 'original' function has the problem that you can't unset a value. with my function, YOU CAN! <?php function array_walk_protected(&$a,$s,$p=null) { if(!function_exists($s)||!is_array($a)) { return false; } foreach($a as $k=>$v) { if(call_user_func_array($s,array(&$a[$k],$k,$p))===false) { unset($a[$k]); } } } function get_name(&$e,$i,$p) { echo "$i: $e<br>"; return false; } $m=array('d'=>'33','Y'=>55); array_walk_protected($m,'get_name'); var_dump($m); //returns array(0) { } ?> i called it array_walk_protected because it is protected against the unexpected behavior of unsetting the value with the original function. to delete an element, simply return false!!! nothing else is needed! unsetting $e, under your created function, will keep the same array as-is, with no changes! by the way, the function returns false if $a is not array or $s is not a string! limitations: it only can run user defined functions. i hope you like it! ---- Server IP: 69.147.83.199 Probable Submitter: 77.54.215.164 ---- Manual Page -- http://php.net/manual/en/function.array-walk.php Edit -- https://master.php.net/note/edit/110933 Del: integrated -- https://master.php.net/note/delete/110933/integrated Del: useless -- https://master.php.net/note/delete/110933/useless Del: bad code -- https://master.php.net/note/delete/110933/bad+code Del: spam -- https://master.php.net/note/delete/110933/spam Del: non-english -- https://master.php.net/note/delete/110933/non-english Del: in docs -- https://master.php.net/note/delete/110933/in+docs Del: other reasons-- https://master.php.net/note/delete/110933 Reject -- https://master.php.net/note/reject/110933 Search -- https://master.php.net/manage/user-notes.php