3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $t = [1, 2, 3, 4, 5]; foreach($t as $k => &$v) { var_dump($v); unset($t[$k]); var_dump($v);}
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
int(1) int(1) int(2) int(2) int(3) int(3) int(4) int(4) int(5) int(5)
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/ISkfZ 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/ISkfZ on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/ISkfZ on line 3
Process exited with code 255.