3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function a($a = -true) { } a();
based on QpmUZ
Output for 5.1.3 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.3.2 - 5.1.2
Fatal error: Unsupported operand types in /in/85XAS on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Unsupported operand types in /in/85XAS on line 2