3v4l.org

run code in 300+ PHP versions simultaneously
<?php trait ClosureInATrait { public static function getClosureInTrait() { return function () { return [__CLASS__, self::boo()]; }; } public static function boo() { return __METHOD__; } } class ClassConstantTest { use ClosureInATrait; public static function getClosureInClass() { return function () { return [__CLASS__, self::class]; }; } public static function boo() { return __METHOD__; } } $closureInClass = ClassConstantTest::getClosureInClass(); $closureInTrait = ClassConstantTest::getClosureInTrait(); echo 'Before bind: ' . PHP_EOL; echo '__CLASS__ in class: ' . PHP_EOL; var_dump($closureInClass()); echo '__CLASS__ in Trait: ' . PHP_EOL; var_dump($closureInTrait()); $closureInClass = Closure::bind($closureInClass, null, 'stdClass'); $closureInTrait = Closure::bind($closureInTrait, null, 'stdClass'); echo PHP_EOL . 'After bind: ' . PHP_EOL; echo '__CLASS__ in class: ' . PHP_EOL; var_dump($closureInClass()); echo '__CLASS__ in Trait: ' . PHP_EOL; var_dump($closureInTrait());

preferences:
35.28 ms | 402 KiB | 5 Q