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<?php namespace Name; function Boo() { var_dump('func:', __FUNCTION__, __METHOD__); } trait Constants { public static function classConst () { return function () { return __CLASS__; }; } public static function traitC () {var_dump('trait_method:', __FUNCTION__, __METHOD__, __CLASS__);call_user_func(function () { var_dump('trait_closure:', __FUNCTION__, __METHOD__, __CLASS__); }); } } class Foo { use Constants; public static function method () {var_dump('method:', __FUNCTION__, __METHOD__);call_user_func(function () { var_dump('closure:', __FUNCTION__, __METHOD__); }); } } //Boo(); //Foo::method(); //Foo::traitC(); //var_dump(__METHOD__); $closure = Foo::classConst(); var_dump($closure()); $closure = \Closure::bind($closure, null, '\\stdClass'); var_dump($closure());
Output for 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(8) "Name\Foo" Warning: Cannot bind closure to scope of internal class stdClass in /in/4NYZb on line 23 Fatal error: Uncaught Error: Value of type null is not callable in /in/4NYZb:24 Stack trace: #0 {main} thrown in /in/4NYZb on line 24
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
string(8) "Name\Foo" Warning: Cannot bind closure to scope of internal class stdClass in /in/4NYZb on line 23 Fatal error: Uncaught Error: Function name must be a string in /in/4NYZb:24 Stack trace: #0 {main} thrown in /in/4NYZb on line 24
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
string(8) "Name\Foo" string(8) "stdClass"
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_STRING in /in/4NYZb on line 7
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_STRING in /in/4NYZb on line 2
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/4NYZb on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/4NYZb on line 2
Process exited with code 255.
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