3v4l.org

run code in 300+ PHP versions simultaneously
<?php $id1 = 340454; $id2 = 4; echo dechex(md5($id1 . $id2));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: dechex(): Argument #1 ($num) must be of type int, string given in /in/odrWU:6 Stack trace: #0 /in/odrWU(6): dechex('1efeeea9f738201...') #1 {main} thrown in /in/odrWU on line 6
Process exited with code 255.
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, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
1

preferences:
227.72 ms | 405 KiB | 327 Q