3v4l.org

run code in 300+ PHP versions simultaneously
<?php if (function_exists('openssl_random_pseudo_bytes')) { $hash = openssl_random_pseudo_bytes(255); $hash = bin2hex($hash); $hash = base_convert($hash, 16, 36); var_dump($hash); }
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 - 5.4.32, 7.2.29 - 7.2.33, 7.3.16 - 7.3.33, 7.4.3 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Output for 5.4.34 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.7
Warning: base_convert(): Number too large in /in/jl6nU on line 5 string(0) ""
preferences:
206.3 ms | 402 KiB | 309 Q