note 107076 added to control-structures.foreach

Warning!!! On PHP4 foreach does not acept the & of "... as &$ ..." So, this code will only work on PHP5, not on PHP4: <?php $arr = array(1, 2, 3, 4); foreach ($arr as &$value) { $value = $value * 2; } // $arr is now array(2, 4, 6, 8) unset($value); // break the reference with the last element ?> On PHP4 inside foreach can not be the &$ to pass it by reference, must be done like this: <?php $arr = array(1, 2, 3, 4); foreach ($arr as $index => $value) { $arr[$index] = $arr[$index] * 2; }unset($index,$value); // $arr is now array(2, 4, 6, 8) ?> ---- Server IP: 192.41.42.26 Probable Submitter: 83.42.126.86 ---- Manual Page -- http://www.php.net/manual/en/control-structures.foreach.php Edit -- https://master.php.net/note/edit/107076 Del: integrated -- https://master.php.net/note/delete/107076/integrated Del: useless -- https://master.php.net/note/delete/107076/useless Del: bad code -- https://master.php.net/note/delete/107076/bad+code Del: spam -- https://master.php.net/note/delete/107076/spam Del: non-english -- https://master.php.net/note/delete/107076/non-english Del: in docs -- https://master.php.net/note/delete/107076/in+docs Del: other reasons-- https://master.php.net/note/delete/107076 Reject -- https://master.php.net/note/reject/107076 Search -- https://master.php.net/manage/user-notes.php