3v4l.org

run code in 300+ PHP versions simultaneously
<?php $length = 10; $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; $randomString = ''; for ($i = 0; $i < $length; $i++) { $randomString .= $characters[rand(0, strlen($characters) - 1)]; } print_r(rand(0,$characters));

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30.49 ms | 402 KiB | 5 Q