3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(serialize(function () {}));
Output for 7.0.0 - 7.1.0
Fatal error: Uncaught Exception: Serialization of 'Closure' is not allowed in /in/o14js:3 Stack trace: #0 /in/o14js(3): serialize(Object(Closure)) #1 {main} thrown in /in/o14js on line 3
Process exited with code 255.
Output for hhvm-3.12.0
Warning: Attempted to serialize unserializable builtin class Closure$;1989148836$658b44160ce678c942898ab78a9451cd$ in /in/o14js on line 3 string(2) "N;"
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.3.0 - 5.6.28
Fatal error: Uncaught exception 'Exception' with message 'Serialization of 'Closure' is not allowed' in /in/o14js:3 Stack trace: #0 /in/o14js(3): serialize(Object(Closure)) #1 {main} thrown in /in/o14js on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/o14js on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/o14js on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/o14js on line 3
Process exited with code 255.