3v4l.org

run code in 300+ PHP versions simultaneously
<? $ip=$_SERVER[REMOTE_ADDR]; echo $ip; ?>
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, 5.3.0 - 5.3.29, 7.1.26 - 7.1.33, 7.2.17 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.32, 8.0.0 - 8.0.12, 8.0.14 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
<? $ip=$_SERVER[REMOTE_ADDR]; echo $ip; ?>
Output for 8.0.13
Fatal error: Uncaught Error: Undefined constant "REMOTE_ADDR" in /in/miHoZ:2 Stack trace: #0 {main} thrown in /in/miHoZ on line 2
Process exited with code 255.
Output for 7.2.0 - 7.2.6, 7.4.33
Warning: Use of undefined constant REMOTE_ADDR - assumed 'REMOTE_ADDR' (this will throw an Error in a future version of PHP) in /in/miHoZ on line 2 Notice: Undefined index: REMOTE_ADDR in /in/miHoZ on line 2
Output for 7.3.32 - 7.3.33
Warning: Use of undefined constant REMOTE_ADDR - assumed 'REMOTE_ADDR' (this will throw an Error in a future version of PHP) in /in/miHoZ on line 2
Output for 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
Notice: Use of undefined constant REMOTE_ADDR - assumed 'REMOTE_ADDR' in /in/miHoZ on line 2 Notice: Undefined index: REMOTE_ADDR in /in/miHoZ on line 2

preferences:
199.08 ms | 403 KiB | 343 Q