3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class AO extends ArrayObject { } $x = new AO; $x[3] = new AO; $x[3][2] = 'foo';
Output for 5.0.0 - 7.2.0
Output for 4.3.2 - 4.4.9
Fatal error: Class ao: Cannot inherit from undefined class arrayobject in /in/nNrk1 on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Class ao: Cannot inherit from undefined class arrayobject in /in/nNrk1 on line 3