pin generate

    /*
    - Pin Generator
    - Generates an x-digit pin number. The pin number never starts with 0.
    - Can be converted to an integer with php's intval() function.

    $length     - The amount of digits the pin number should have.
    */

    public function generatePin($length = 4) {
        $pin = '';

        for ($i = 0; $i < $length; $i++) {
            if ($i == 0)
                $pin .= rand(1, 9);
            else
                $pin .= rand(0, 9);
        }

        return $pin;
    }