3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class Foo { public $callable; } class Bar { public function __invoke() { echo 'DO IT'; } } $foo = new Foo; $foo->callable = [new Bar, '__invoke']; ($foo->callable)();
based on FQpuZ
Output for 7.0.0 - 7.2.0
DO IT
Output for 5.4.0 - 5.6.28
Parse error: syntax error, unexpected '(' in /in/vl2fK on line 18
Process exited with code 255.
Output for 5.3.19 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/vl2fK on line 17
Process exited with code 255.