note 112132 added to function.key

A little warning regarding a trap I fell into: "foreach()" loops have no effect on the output of this situation. The documentation of "foreach()" says: "As foreach relies on the internal array pointer changing it within the loop may lead to unexpected behavior. " Whatever that is supposed to mean, it does not use the internal array pointer in a way that you could read the current position with "key()". The following two loops are NOT equivalent: <?php $array = array('a', 'b', 'c'); foreach ($array as $value) { echo key($array)." => $value\n"; } echo "\n"; foreach ($array as $key => $value) { echo "$key => $value\n"; } ?> Output: 1 => a 1 => b 1 => c 0 => a 1 => b 2 => c ---- Server IP: 213.172.110.14 Probable Submitter: 87.153.124.72 ---- Manual Page -- http://php.net/manual/en/function.key.php Edit -- https://master.php.net/note/edit/112132 Del: integrated -- https://master.php.net/note/delete/112132/integrated Del: useless -- https://master.php.net/note/delete/112132/useless Del: bad code -- https://master.php.net/note/delete/112132/bad+code Del: spam -- https://master.php.net/note/delete/112132/spam Del: non-english -- https://master.php.net/note/delete/112132/non-english Del: in docs -- https://master.php.net/note/delete/112132/in+docs Del: other reasons-- https://master.php.net/note/delete/112132 Reject -- https://master.php.net/note/reject/112132 Search -- https://master.php.net/manage/user-notes.php