3v4l.org

run code in 300+ PHP versions simultaneously
<?php for ($i = 0;$i < 20; $i++){ echo strlen(rtrim(strtr(base64_encode(random_bytes(24)), '+/', '-_'), '=')); echo "\n"; }
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.24, 7.3.0 - 7.3.12
32 32 32 32 32 32 32 32 32 32 32 32 32 32 32 32 32 32 32 32
preferences:
90.12 ms | 402 KiB | 82 Q