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<?php namespace TestNS; class C { static public function f() { echo "Hi!"; } } function call(callable $func) { $func(); } call(['C', 'f']);
based on kBPf5
Output for 7.0.0 - 7.2.0
Fatal error: Uncaught TypeError: Argument 1 passed to TestNS\call() must be callable, array given, called in /in/BfrUV on line 14 and defined in /in/BfrUV:10 Stack trace: #0 /in/BfrUV(14): TestNS\call(Array) #1 {main} thrown in /in/BfrUV on line 10
Process exited with code 255.
Output for 5.4.12 - 5.6.28
Catchable fatal error: Argument 1 passed to TestNS\call() must be callable, array given, called in /in/BfrUV on line 14 and defined in /in/BfrUV on line 10
Process exited with code 255.
Output for 5.3.22 - 5.3.29
Parse error: syntax error, unexpected '[', expecting ')' in /in/BfrUV on line 14
Process exited with code 255.