3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = [1,2,3]; foreach ($a as &$b){ $b += 10; } foreach ($a as $b){ $b += 100; } print_r($a); foreach ($a as &$b){ $b += 10; } unset($b); foreach ($a as $b){ $b += 100; } print_r($a);
based on b21pD
Output for 5.4.0 - 7.2.0
Array ( [0] => 11 [1] => 12 [2] => 212 ) Array ( [0] => 21 [1] => 22 [2] => 222 )
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/iNdkl 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 '[' in /in/iNdkl on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/iNdkl on line 3
Process exited with code 255.