3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $f4 = null; $zero = 0; // global scope $f1 = function() use ($zero) { $one = 1; // third-level closure scope of f4 $f2 = function() use ($zero, $one) { $two = 2; // second-level closure scope of f4 $f3 = function() use ($zero, $one, $two) { global $f4; $three = 3; // first-level closure scope of f4 $f4 = function() use ($zero, $one, $two, $three) { $four = 4; // local scope of f4 echo $zero + $one + $two + $three + $four; }; }; }; }; var_dump($f1);
based on nSO3k
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
object(Closure)#1 (1) { ["static"]=> array(1) { ["zero"]=> int(0) } }
Output for hhvm-3.12.0
object(Closure$#4;1070144636$15bb0740c542f3138eeb2e7e8efa6ae$)#1 (1) { ["static"]=> array(1) { ["zero"]=> int(0) } }
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/5C6fJ on line 4
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/5C6fJ on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/5C6fJ on line 4
Process exited with code 255.