3v4l.org

run code in 300+ PHP versions simultaneously
<?php $seed = (int)bin2hex(openssl_random_pseudo_bytes(16)); srand($seed); echo $seed;
Output for 7.2.6 - 7.2.33, 7.3.16 - 7.3.33, 7.4.3 - 7.4.33, 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: Call to undefined function openssl_random_pseudo_bytes() in /in/aZOVt:2 Stack trace: #0 {main} thrown in /in/aZOVt on line 2
Process exited with code 255.
Output for 7.0.9, 7.2.0
5
Output for 7.0.1 - 7.0.2, 7.0.6, 7.0.8, 7.0.11, 7.0.15, 7.0.20, 7.1.1 - 7.1.2, 7.1.7 - 7.1.10
0
Output for 7.1.6
25
Output for 7.1.5
11
Output for 7.1.4
450
Output for 7.1.3
6270
Output for 7.1.0
9223372036854775807
Output for 7.0.12, 7.0.19
9
Output for 7.0.18
41655
Output for 7.0.17
4236
Output for 7.0.16
66070
Output for 7.0.14
7
Output for 7.0.13
3
Output for 7.0.10
36
Output for 7.0.7
644
Output for 7.0.5
8
Output for 7.0.4
7800
Output for 7.0.3
335
Output for 7.0.0
6

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