3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function f(&$a) {} function &g($a) { $v = $a; return $v; } $a = function() {}; f($a(3));
Output for 7.0.0 - 7.1.0
Notice: Only variables should be passed by reference in /in/Auk9L on line 8
Output for 5.3.28 - 5.3.29, 5.4.20 - 5.6.28
Strict Standards: Only variables should be passed by reference in /in/Auk9L on line 8
Output for 5.3.0 - 5.3.27, 5.4.0 - 5.4.19
Strict Standards: Only variables should be passed by reference in /in/43Vto on line 8
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/43Vto on line 6
Process exited with code 255.
Output for 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/43Vto on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/43Vto on line 6
Process exited with code 255.
Output for 4.3.0
Parse error: parse error, unexpected T_FUNCTION in /in/Auk9L on line 6
Process exited with code 255.