note 129418 added to function.defined

To check in a trait if a constant is defined in the class using the trait, prepend the constant name with self::class: <?php trait MyTrait { public function checkConstant() { assert(defined(self::class . "::MY_CONSTANT")); print self::MY_CONSTANT; } } class MyClass { use MyTrait; protected const MY_CONSTANT = 'my value'; } $class = new MyClass(); $class->checkConstant(); ?> ---- Server IP: 45.112.84.4 Probable Submitter: 80.90.13.131 (proxied: 92.247.221.20) ---- Manual Page -- https://php.net/manual/en/function.defined.php Edit -- https://main.php.net/note/edit/129418 Del: integrated -- https://main.php.net/note/delete/129418/integrated Del: useless -- https://main.php.net/note/delete/129418/useless Del: bad code -- https://main.php.net/note/delete/129418/bad+code Del: spam -- https://main.php.net/note/delete/129418/spam Del: non-english -- https://main.php.net/note/delete/129418/non-english Del: in docs -- https://main.php.net/note/delete/129418/in+docs Del: other reasons-- https://main.php.net/note/delete/129418 Reject -- https://main.php.net/note/reject/129418 Search -- https://main.php.net/manage/user-notes.php