3v4l.org

run code in 300+ PHP versions simultaneously
<?php // ?> <?php header('Location: index.php');
Output for 7.0.20, 7.1.5 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Warning: Cannot modify header information - headers already sent by (output started at /in/RvtQN:6) in /in/RvtQN on line 10
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.6, 7.1.0
Warning: Cannot modify header information - headers already sent by (output started at /in/RvtQN:8) in /in/RvtQN on line 10

preferences:
149.57 ms | 402 KiB | 185 Q