3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $array= [[1], [2], [3], [4], [5], [6], [7], [8], [9]]; foreach(array_keys($array) as $key) { unset($array[$key]); } print_r($array);
based on 9C2NU
Output for 5.4.0 - 7.2.0
Array ( )
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/7jmgk on line 2
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/7jmgk on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/7jmgk on line 2
Process exited with code 255.