note 49107 added to function.array-walk

As well as being able to pass the array the callback will be working on by reference, one can pass the optional userdata parameters by reference also: <?php function surprise($x,$key,$xs) { //$key is unused here. $x.='!'; array_push($xs,$x); } $array1 = array('this','that','the other'); $array2 = array(); array_walk($array1,'surprise',&$array2); print_r($array1); print_r($array2); ?> Of course, that precise example would be better handled by array_map, but the principle is there. ---- Manual Page -- http://www.php.net/manual/en/function.array-walk.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+49107 Delete -- http://master.php.net/manage/user-notes.php?action=delete+49107&report=yes Reason: bad code -- http://master.php.net/manage/user-notes.php?action=delete+49107&report=yes&reason=bad+code Reason: spam -- http://master.php.net/manage/user-notes.php?action=delete+49107&report=yes&reason=spam Reason: useless example -- http://master.php.net/manage/user-notes.php?action=delete+49107&report=yes&reason=useless+example Reason: contains commercial links -- http://master.php.net/manage/user-notes.php?action=delete+49107&report=yes&reason=contains+commercial+links Reason: useless note -- http://master.php.net/manage/user-notes.php?action=delete+49107&report=yes&reason=useless+note Reject -- http://master.php.net/manage/user-notes.php?action=reject+49107&report=yes Search -- http://master.php.net/manage/user-notes.php