note 81471 added to language.oop5.overloading

PHP4 supports using __call but with a twist that I did not see mentioned anywhere on this page. In 4, you must make the __call method signature with 3 parameters, the 3rd of which is the return value and must be declared by-reference. Instead of using "return $value;" you would assign the 3rd argument to $value. Example (both implementations below have the same result when run in the respective PHP versions: <?php // Will only work in PHP4 class Foo { function __call($method_name, $parameters, &$return_value) { $return_value = "Method $method_name was called with " . count($parameters) . " parameters"; } } // Will only work in PHP5 class Foo { function __call($method_name, $parameters) { return "Method $method_name was called with " . count($parameters) . " parameters"; } } ?> ---- Server IP: 64.71.164.2 Probable Submitter: 64.8.70.20 ---- Manual Page -- http://www.php.net/manual/en/language.oop5.overloading.php Edit -- https://master.php.net/note/edit/81471 Del: integrated -- https://master.php.net/note/delete/81471/integrated Del: useless -- https://master.php.net/note/delete/81471/useless Del: bad code -- https://master.php.net/note/delete/81471/bad+code Del: spam -- https://master.php.net/note/delete/81471/spam Del: non-english -- https://master.php.net/note/delete/81471/non-english Del: in docs -- https://master.php.net/note/delete/81471/in+docs Del: other reasons-- https://master.php.net/note/delete/81471 Reject -- https://master.php.net/note/reject/81471 Search -- https://master.php.net/manage/user-notes.php