<?php
    $con = mysqli_connect("localhost", "root", "", "project_komperlitbang_gkjw");
    $length = 28; // Panjang string yang diinginkan
    $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'.date('Ymdhis');
?>