3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $closure = function($a, &$b){}; $reflector = new ReflectionFunction($closure); echo $reflector;
based on BkpF0
Output for 7.0.0 - 7.1.0
Closure [ <user, prototype Closure> function {closure} ] { @@ /in/p5lU1 3 - 3 - Parameters [2] { Parameter #0 [ <required> $a ] Parameter #1 [ <required> &$b ] } }
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0
Closure [ <user> function {closure} ] { @@ /in/p5lU1 3 - 3 - Parameters [2] { Parameter #0 [ <required> $a ] Parameter #1 [ <required> &$b ] } }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/p5lU1 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/p5lU1 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/p5lU1 on line 3
Process exited with code 255.