3v4l.org

run code in 300+ PHP versions simultaneously
<?php $lists = array('hoge'); array_walk($lists, 'trim'); if (current($lists) !== false) { echo 'o'; } else { echo 'x'; }
Output for 5.3.4 - 5.3.13, 5.4.0 - 5.4.3, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
o
Output for 5.3.14 - 5.3.29, 5.4.4 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20
x
preferences:
152.17 ms | 402 KiB | 258 Q