3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php interface ListenerAggregate {} class EM { public function attach(callable $listener){ if($listener instanceof ListenerAggregate){ // this is indeed an aggregate! } } } class SomeAggregateListener implements ListenerAggregate { public function __invoke() { // look ma, I'm a callable! } } $em = new EM; $em->attach(function(){}); $aggregate = new SomeAggregateListener; $em->attach($aggregate);
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Output for 5.3.0 - 5.3.29
Catchable fatal error: Argument 1 passed to EM::attach() must be an instance of callable, instance of Closure given, called in /in/qcrLM on line 19 and defined in /in/qcrLM on line 5
Process exited with code 255.
Output for 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/qcrLM on line 19
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/qcrLM on line 19
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/qcrLM 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 in /in/qcrLM on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/qcrLM on line 2
Process exited with code 255.