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<?php class Example { public function match(callable $cb) { echo $cb(); } } class Callee { public function yo() { return "If I show up, I'm allowed to do this!"; } } $ex = new Example(); $ex->match(['Callee', 'yo']);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: Example::match(): Argument #1 ($cb) must be of type callable, array given, called in /in/JJ8kR on line 20 and defined in /in/JJ8kR:5 Stack trace: #0 /in/JJ8kR(20): Example->match(Array) #1 {main} thrown in /in/JJ8kR on line 5
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Deprecated: Non-static method Callee::yo() should not be called statically in /in/JJ8kR on line 5 Deprecated: Non-static method Callee::yo() should not be called statically in /in/JJ8kR on line 7 If I show up, I'm allowed to do this!
Output for 7.3.32 - 7.3.33
If I show up, I'm allowed to do this!
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Strict Standards: Non-static method Callee::yo() should not be called statically in /in/JJ8kR on line 5 Strict Standards: Non-static method Callee::yo() should not be called statically in /in/JJ8kR on line 7 If I show up, I'm allowed to do this!

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