note 33559 added to functions.arguments

Call-time pass-by-ref arguments are deprecated and may not be supported later, so doing this: ---- function foo($str) { $str = "bar"; } $mystr = "hello world"; foo(&$mystr); ---- will produce a warning when using the recommended php.ini file. The way I ended up using for optional pass-by-ref args is to just pass an unused variable when you don't want to use the resulting parameter value: ---- function foo(&$str) { $str = "bar"; } foo($_unused_); ---- Note that trying to pass a value of NULL will produce an error. ---- Manual Page -- http://www.php.net/manual/en/functions.arguments.php Edit Note -- http://master.php.net/manage/user-notes.php?action=edit+33559 Delete Note -- http://master.php.net/manage/user-notes.php?action=delete+33559&report=yes Reject Note -- http://master.php.net/manage/user-notes.php?action=reject+33559&report=yes