Req #55266 [Com]: Traits vs Type hints

Edit report at https://bugs.php.net/bug.php?id=55266&edit=1 ID: 55266 Comment by: me at mikestowe dot com Reported by: mchlpl at gmail dot com Summary: Traits vs Type hints Status: Open Type: Feature/Change Request Package: Class/Object related PHP Version: 5.4.0alpha2 Block user comment: N Private report: N New Comment: I believe this is the correct result as $a is not an instance of the trait but rather of the class that utilizes the trait. Previous Comments: ------------------------------------------------------------------------ [2011-07-22 07:44:34] mchlpl at gmail dot com Description: ------------ Traits, when used in a class, are not added to class' type, and therefore can not be use in type hints. The RFCs on traits https://wiki.php.net/rfc/traits and on horizontal reuse https://wiki.php.net/rfc/horizontalreuse do not explain if this is by design. On the other hand Traits seem to share the same namespace as Classes and Interfaces, since it is impossible to have an Interface and a Trait that share the name ('Fatal error: Cannot redeclare class' is raised when this is attempted). Test script: --------------- <?php trait SomeTrait {} class SomeClass { use SomeTrait; } $a = new SomeClass(); var_dump(is_a($a,'SomeTrait')); Expected result: ---------------- bool(true) Actual result: -------------- bool(false) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=55266&edit=1