3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $foo = 'used variable'; $closure = function ($foo) use ($foo) { return $foo; }; var_dump(eval('return $closure;'));
based on V4LSE
Output for 7.1.0
Fatal error: Cannot use lexical variable $foo as a parameter name in /in/rQlfa on line 3
Process exited with code 255.
Output for 5.3.0 - 7.0.14
object(Closure)#1 (2) { ["static"]=> array(1) { ["foo"]=> string(13) "used variable" } ["parameter"]=> array(1) { ["$foo"]=> string(10) "<required>" } }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/rQlfa 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/rQlfa on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/rQlfa on line 3
Process exited with code 255.