3v4l.org

run code in 300+ PHP versions simultaneously
<?php $url = ''; $result = strtolower(substr($url, -4)) === '.gif'; var_dump($result);
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 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 - 8.3.7
bool(false)
preferences:
188.28 ms | 403 KiB | 216 Q