3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class MyStack extends SplStack {}
Output for 5.3.0 - 7.2.0
Output for 5.0.0 - 5.2.17
Fatal error: Class 'SplStack' not found in /in/BZCFH on line 3
Process exited with code 255.
Output for 4.3.2 - 4.4.9
Fatal error: Class mystack: Cannot inherit from undefined class splstack in /in/BZCFH on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Class mystack: Cannot inherit from undefined class splstack in /in/BZCFH on line 3