3v4l.org

run code in 300+ PHP versions simultaneously
<?php $url = 'http://`test`.com/test'; if (filter_var($url, FILTER_VALIDATE_URL)) { if ($host = parse_url($url, PHP_URL_HOST)) { print $host; } print url; } else { print "Fail"; }
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 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 - 8.3.6
Fail
preferences:
180.05 ms | 404 KiB | 226 Q