3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo 'http://'. $_SERVER["HTTP_HOST"] . $_SERVER["REQUEST_URI"];
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Warning: Undefined array key "HTTP_HOST" in /in/hmQlo on line 2 Warning: Undefined array key "REQUEST_URI" in /in/hmQlo on line 2 http://
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined index: HTTP_HOST in /in/hmQlo on line 2 Notice: Undefined index: REQUEST_URI in /in/hmQlo on line 2 http://
Output for 7.3.32 - 7.3.33
http://
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Notice: Undefined index: HTTP_HOST in /in/hmQlo on line 2 Notice: Undefined index: REQUEST_URI in /in/hmQlo on line 2 http://

preferences:
259.37 ms | 402 KiB | 312 Q