3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $var = array('hoge'); $var[] = &$var[0]; var_dump($var[0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0][0]);
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
string(1) "h"
Output for 5.0.0 - 5.3.29
Fatal error: Cannot use string offset as an array in /in/E2BY5 on line 6
Process exited with code 255.
Output for 4.3.0 - 4.4.9
NULL