$sql = "SELECT * FROM res WHERE email = '$email'";
            $result = mysqli_query($conn, $sql);
            if (mysqli_num_rows($result) > 0) {
             // Fetching data
                while ($row = mysqli_fetch_array($result)) {

                    // Get User ID
                    $_SESSION['user_id'] = $row['id'];
                    $user_id = $_SESSION['user_id'];
                    $url = $row['files'];
                    // Get Files
                    $_SESSION['files'] = $row['files'];
                    $file =  $_SESSION['files'];
                    $edit = [
                        'id' => $row['id'],
                        'files' => $row['files']
                    ];
                    ?>
                    <ul class="list-style">
                        <li>
                            <!-- Get Data of Specific id -->
                            <?php echo "
                                <div class='col-md-6'>
                                $row[name] &nbsp;&nbsp;&nbsp;&nbsp;
                                </div>
                                <div class='col-md-6'>
                                <a class='btn btn-primary' href='edit.php?'.http_build_query($edit, null, '&', PHP_QUERY_RFC3986).'>Edit</a>
                                <a class='btn btn-danger' href='delete.php?id=$row[id]'>X</a>
                                </div><br/>";
                            ?>
                        </li>
                    </ul>
            <?php
            }
        }
        ?>

include("config.php");
    if (isset($_GET['edit'])) {
        // $id = $_GET['edit'];
        $id = $_GET['id'];
        $files = $_GET['files'];
        $sql = "SELECT * FROM res WHERE id = '$id'";
        $result = mysqli_query($conn, $sql);
        $row = mysqli_fetch_array($result);
    }

    if (isset($_POST['name'])) {
        $name = $_POST['name'];
        $email = $_POST['email'];
        $phone = $_POST['phone'];
        $id = $_POST['id'];
        $sql2 = "UPDATE res SET name='$name', email='$email', phone_number='$phone' WHERE id = '$id'";
        $result2 = mysqli_query($conn, $sql2);
        echo "<meta http-equiv='refresh' content='0;url=list.php'>";
    }

$edit = [
    'id' => $row['id'],
    'files' => $row['files']
];
echo '<a href="edit.php?'.http_build_query($edit, null, '&', PHP_QUERY_RFC3986).'">Link</a>';

$id = $_GET['id'];
$files = $_GET['files'];