3v4l.org

run code in 300+ PHP versions simultaneously
<?php $alpha = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'; $length = 11; for($i=0; $i<$length; $i++){ $ran = rand(0, strlen($alpha)-1); $key .= substr($alpha, $ran, 1); } echo $key; ?>

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33.83 ms | 402 KiB | 5 Q