CODE EXAMPLE FOR PHP

php random string

function generateRandomString($digits) {
    $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
    $randstring = '';
    for ($i = 0; $i < $digits; $i++) {
        $randstring .= $characters[rand(0, strlen($characters))];
    }
    return $randstring;
}
echo generateRandomString(24);