note 116640 added to language.types.callable

You can use 'self::methodName' as a callable, but this is dangerous. Consider this example: <?php class Foo { public static function doAwesomeThings() { FunctionCaller::callIt('self::someAwesomeMethod'); } public static function someAwesomeMethod() { // fantastic code goes here. } } class FunctionCaller { public static function callIt(callable $func) { call_user_func($func); } } Foo::doAwesomeThings(); ?> This results in an error: Warning: class 'FunctionCaller' does not have a method 'someAwesomeMethod'. For this reason you should always use the full class name: <?php FunctionCaller::callIt('Foo::someAwesomeMethod'); ?> I believe this is because there is no way for FunctionCaller to know that the string 'self' at one point referred to to Foo. ---- Server IP: 72.52.91.14 Probable Submitter: 2601:2:5180:f800:1d3d:f274:18bf:6a07 ---- Manual Page -- http://php.net/manual/en/language.types.callable.php Edit -- https://master.php.net/note/edit/116640 Del: integrated -- https://master.php.net/note/delete/116640/integrated Del: useless -- https://master.php.net/note/delete/116640/useless Del: bad code -- https://master.php.net/note/delete/116640/bad+code Del: spam -- https://master.php.net/note/delete/116640/spam Del: non-english -- https://master.php.net/note/delete/116640/non-english Del: in docs -- https://master.php.net/note/delete/116640/in+docs Del: other reasons-- https://master.php.net/note/delete/116640 Reject -- https://master.php.net/note/reject/116640 Search -- https://master.php.net/manage/user-notes.php