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run code in 150+ php & hhvm versions
Bugs & Features
<?php function callStuff(callable $function) { $function(); } class C { function foo() { echo 'fooooooooooo'; } public function __invoke() { echo 'invoke w00t w00t'; } } $c = new C; callStuff(array($c, 'foo')); callStuff($c);
Output for 5.4.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
foooooooooooinvoke w00t w00t
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.2.0 - 5.3.29
Catchable fatal error: Argument 1 passed to callStuff() must be an instance of callable, array given, called in /in/TQCnY on line 23 and defined in /in/TQCnY on line 3
Process exited with code 255.
Output for 5.1.0 - 5.1.6
Fatal error: Argument 1 passed to callStuff() must be an object of class callable, called in /in/TQCnY on line 23 and defined in /in/TQCnY on line 3
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Fatal error: Argument 1 must be an object of class callable in /in/TQCnY on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting ')' in /in/TQCnY on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting ')' in /in/TQCnY on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/TQCnY on line 3
Process exited with code 255.