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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, new stdClass()); $closureInTrait = Closure::bind($closureInTrait, new stdClass()); var_dump($closureInClass(), $closureInTrait());
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
string(17) "ClassConstantTest" string(17) "ClassConstantTest" string(17) "ClassConstantTest" string(17) "ClassConstantTest"
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
string(17) "ClassConstantTest" string(17) "ClassConstantTest" Warning: Cannot bind an instance to a static closure in /in/2HGM9 on line 30 Warning: Cannot bind an instance to a static closure in /in/2HGM9 on line 31 string(17) "ClassConstantTest" string(17) "ClassConstantTest"
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_STRING in /in/2HGM9 on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_STRING in /in/2HGM9 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/2HGM9 on line 3
Process exited with code 255.
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244.87 ms | 401 KiB | 329 Q