3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"; $len = strlen($s); $m = ''; for ($i = 0; $i < $len; $i ++) { $m .= $s[mt_rand(0, $len -1)]; } return $m;
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 - 7.0.20, 7.1.0 - 7.1.7
preferences:
150.75 ms | 404 KiB | 217 Q