3v4l.org

run code in 300+ PHP versions simultaneously
<?php $num = 0; while($num != 40){ $alphabet = "abcdefghijklmnopqrstuwxyzABCDEFGHIJKLMNOPQRSTUWXYZ0123456789"; $pass = array(); //remember to declare $pass as an array $alphaLength = strlen($alphabet) - 1; //put the length -1 in cache for ($i = 0; $i < 8; $i++) { $n = rand(0, $alphaLength); $pass[] = $alphabet[$n]; } //print_r ($pass); echo implode($pass) . PHP_EOL; $num++; }

preferences:
23.8 ms | 405 KiB | 5 Q