3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(empty(ALLOW_PENDING_USERS));
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
Fatal error: Uncaught Error: Undefined constant "ALLOW_PENDING_USERS" in /in/B9ZFM:3 Stack trace: #0 {main} thrown in /in/B9ZFM on line 3
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: Use of undefined constant ALLOW_PENDING_USERS - assumed 'ALLOW_PENDING_USERS' (this will throw an Error in a future version of PHP) in /in/B9ZFM on line 3 bool(false)
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25
Notice: Use of undefined constant ALLOW_PENDING_USERS - assumed 'ALLOW_PENDING_USERS' in /in/B9ZFM on line 3 bool(false)

preferences:
156.08 ms | 402 KiB | 194 Q