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<?php trait ClosureInATrait { public static function getClosureInTrait() { return function () { return __CLASS__; }; } } class ClassConstantTest { use ClosureInATrait; public static function getClosureInClass() { return function () { return __CLASS__; }; } } $closureInClass = ClassConstantTest::getClosureInClass(); $closureInTrait = ClassConstantTest::getClosureInTrait(); var_dump($closureInClass(), $closureInTrait()); $closureInClass = Closure::bind($closureInClass, null, 'stdClass'); $closureInTrait = Closure::bind($closureInTrait, null, 'stdClass'); var_dump($closureInClass(), $closureInTrait());
Output for git.master, git.master_jit, rfc.property-hooks
string(17) "ClassConstantTest" string(17) "ClassConstantTest" Warning: Cannot bind closure to scope of internal class stdClass in /in/afOPe on line 30 Warning: Cannot bind closure to scope of internal class stdClass in /in/afOPe on line 31 Fatal error: Uncaught Error: Value of type null is not callable in /in/afOPe:33 Stack trace: #0 {main} thrown in /in/afOPe on line 33
Process exited with code 255.

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