<?php
$id = $_GET['id'];
?>

<form id="contact-us" method="post" action="upload_bukti_process.php?id=<?= $id ?>" enctype="multipart/form-data">
    <!-- Left Inputs -->
    <input type="file" name="uploaded_file" id="username" required="required" class="form" placeholder="Username" />
    <br><br>
    <button type="submit" id="submit" name="submit" class="text-center form-btn form-btn">Upload</button> 
</form>