note 125765 added to language.types.array

Function unset can delete array's element by reference only when you specify source array. See example: <?php $array = [1, 2, 3, 4, 5]; foreach ($array as $k => &$v){ if ($k >= 3){ unset($v); } } echo count($array); // 5 ?> In this case unset delete only reference, however original array didn't change. Or different example: <?php $arr = [1, 2]; $a = &$arr[0]; unset($a); count($arr); // 2 ?> So for deleting element from first example need use key and array. <?php // ... unset($array[$k]); // ... ?> ---- Server IP: 45.112.84.4 Probable Submitter: 45.91.159.166 (proxied: 78.107.84.40) ---- Manual Page -- http://php.net/manual/en/language.types.array.php Edit -- https://master.php.net/note/edit/125765 Del: integrated -- https://master.php.net/note/delete/125765/integrated Del: useless -- https://master.php.net/note/delete/125765/useless Del: bad code -- https://master.php.net/note/delete/125765/bad+code Del: spam -- https://master.php.net/note/delete/125765/spam Del: non-english -- https://master.php.net/note/delete/125765/non-english Del: in docs -- https://master.php.net/note/delete/125765/in+docs Del: other reasons-- https://master.php.net/note/delete/125765 Reject -- https://master.php.net/note/reject/125765 Search -- https://master.php.net/manage/user-notes.php