3v4l.org

run code in 300+ PHP versions simultaneously
<?php random_bytes(50);
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0
Output for 5.4.2 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Fatal error: Call to undefined function random_bytes() in /in/0XMu1 on line 3
Process exited with code 255.
preferences:
94.9 ms | 402 KiB | 89 Q