3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class A { public function run() { print "RUN" . PHP_EOL; } } class B { public function executor(callable $callable) { call_user_func($callable); } } (new B())->executor([new A, 'run']);
Output for 5.6.0 - 5.6.30, hhvm-3.18.4 - 3.21.0, 7.0.0 - 7.3.0rc3
RUN