3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class User { public $profile; } class Profile { public $user; public function __construct(User $user) { $this->user = $user; $user->profile = $this; } } $user1 = new User(); $profile1 = new Profile($user1); $user2 = new User(); $profile2 = new Profile($user2); $profile1 == $profile2;
Output for 5.0.0 - 5.3.29, 5.4.12 - 5.6.28, 7.0.0 - 7.1.0
Fatal error: Nesting level too deep - recursive dependency? in /in/OSGvv on line 27
Process exited with code 255.
Output for hhvm-3.10.0 - 3.12.0
Fatal error: infinite recursion detected in /in/OSGvv on line 27
Process exited with code 255.
Output for 5.4.0 - 5.4.11

Process exited with code 139.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/OSGvv on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/OSGvv on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/OSGvv on line 6
Process exited with code 255.