3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = function() { echo "foo"; }; var_dump(serialize($a));
Output for 7.0.0 - 7.1.0
Fatal error: Uncaught Exception: Serialization of 'Closure' is not allowed in /in/fHTvj:3 Stack trace: #0 /in/fHTvj(3): serialize(Object(Closure)) #1 {main} thrown in /in/fHTvj on line 3
Process exited with code 255.
Output for hhvm-3.12.0
Warning: Attempted to serialize unserializable builtin class Closure$;1381499444$db9f56e6798f1b98f62672ead4713b49$ in /in/fHTvj on line 3 string(2) "N;"
Output for hhvm-3.10.0
Warning: Attempted to serialize unserializable builtin class Closure$;1381499444$aa4558f97388bd70ef78d2236614f7c5$ in /in/fHTvj on line 3 string(2) "N;"
Output for 5.3.0 - 5.6.28
Fatal error: Uncaught exception 'Exception' with message 'Serialization of 'Closure' is not allowed' in /in/fHTvj:3 Stack trace: #0 /in/fHTvj(3): serialize(Object(Closure)) #1 {main} thrown in /in/fHTvj 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 in /in/fHTvj on line 2
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 in /in/fHTvj on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/fHTvj on line 2
Process exited with code 255.