3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php foo(false) function foo($x) { return $x === $x(); }
Output for 5.6.0 - 5.6.30, 7.0.0 - 7.1.7
Parse error: syntax error, unexpected 'function' (T_FUNCTION) in /in/tK1FV on line 4
Process exited with code 255.
Output for hhvm-3.15.4
Fatal error: Uncaught Error: syntax error, unexpected T_FUNCTION in /in/tK1FV:4 Stack trace: #0 {main}
Process exited with code 255.