note 61673 added to control-structures.foreach

Dangers with References <?php $months = array("Jan", "Feb", "March"); foreach ($months as &$month) { $month .= "Beep"; } print_r($months); foreach ($months as $month) { printf("%s\n", $month); } ?> Because $month is a reference to $months[2], iterating again with the same varible name causes $months[2] to be overwritten! Oh no! Ouput: Array ( [0] => JanBeep [1] => FebBeep [2] => MarchBeep ) JanBeep FebBeep FebBeep ---- Server IP: 203.16.234.20 Probable Submitter: 203.63.126.9 ---- Manual Page -- http://www.php.net/manual/en/control-structures.foreach.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+61673 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+61673&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+61673&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+61673&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+61673&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+61673&report=yes&reason=non-english Delete: already in docs -- http://master.php.net/manage/user-notes.php?action=delete+61673&report=yes&reason=already+in+docs Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+61673&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+61673&report=yes Search -- http://master.php.net/manage/user-notes.php