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run code in 150+ php & hhvm versions
Bugs & Features
<?php function taskRunner(Callable $param) { return call_user_func($param); } class Test { function __invoke() { print "Called".PHP_EOL; } } $b=new Test(); print taskRunner($b);
based on fkt4n
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Called
Output for 5.2.0 - 5.3.29
Catchable fatal error: Argument 1 passed to taskRunner() must be an instance of Callable, instance of Test given, called in /in/rVhr9 on line 15 and defined in /in/rVhr9 on line 2
Process exited with code 255.
Output for 5.0.0 - 5.1.6
Fatal error: Class 'Callable' not found in /in/rVhr9 on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting ')' in /in/rVhr9 on line 2
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/rVhr9 on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/rVhr9 on line 2
Process exited with code 255.