3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class Closure {} var_dump(class_exists('\Closure'));
Output for 7.0.0 - 7.1.0
Fatal error: Cannot declare class Closure, because the name is already in use in /in/X88Va on line 2
Process exited with code 255.
Output for hhvm-3.12.0
Fatal error: Class already declared: Closure in /in/X88Va on line 2
Process exited with code 255.
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.3.0 - 5.6.28
Fatal error: Cannot redeclare class Closure in /in/X88Va on line 2
Process exited with code 255.
Output for 4.3.0 - 5.2.17
bool(false)