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run code in 150+ php & hhvm versions
Bugs & Features
<?php $clo = function(){}; var_dump(get_class($clo));
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
string(7) "Closure"
Output for hhvm-3.12.0
string(52) "Closure$;804446762$e99bf7f98654689755f7ab7c18c39dae$"
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/PsOUh 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 in /in/PsOUh on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/PsOUh on line 3
Process exited with code 255.