3v4l.org

run code in 300+ PHP versions simultaneously
<?php function quickRandom($length = 16) { $length = intval($length, 10); $pool = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; $pool_length = 62; $output = ''; while($length--) { $output .= $pool[rand(0,$pool_length - 1)]; } return $output; } $i = 100000; while($i--) { quickRandom(311); }
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, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.1, 7.0.3 - 7.0.5, 7.0.8 - 7.0.20, 7.1.0 - 7.1.7

Process exited with code 137.
Output for 7.0.2, 7.0.6 - 7.0.7
preferences:
167.16 ms | 402 KiB | 215 Q