ช่วยดูโค้ดนี้ทีนะครับ ผมหาจุดผิดไม่ได้สักที รบกวนหน่อยนะครับ phpmySQL

// Fetch the file information
$query = "
SELECT `mime`, `name`, ;`size`, `data`
FROM `file`
WHERE `id` = {$id}";
$result = $dbLink->query($query);

<?php
// Make sure an ID was passed
if(isset($_GET['id'])) {
// Get the ID
$id = intval($_GET['id']);

// Make sure the ID is in fact a valid&nbsp;ID
if($id <= 0) ;{
die('The ID is invalid!');
}
else {
//&nbsp;Connect to the database
$dbLink = new mysqli('localhost', 'root', 'root', 'magicbox');
if(mysqli_connect_errno()) {
die("MySQL connection failed: ". mysqli_connect_error());
}

//&nbsp;Fetch the file information
$query = "
SELECT `mime`, `name`, ;`size`, `data`
FROM `file`
WHERE `id` = {$id}";
$result = $dbLink->query($query);

if($result) {
// Make sure the result is valid
if($result->num_rows == 1) {
// Get the row
$row =&nbsp;mysqli_fetch_assoc($result);

// Print headers
header("Content-Type: ". $row['mime']);
header("Content-Length: ". $row['size']);
header("Content-Disposition: attachment; filename=". $row['name']);

// Print data
echo $row['data'];
}
else {
echo 'Error! No image exists with that ID.';
}

// Free the mysqli&nbsp;resources
@mysqli_free_result($result);
}
else&nbsp;{
echo "Error! Query failed: <pre>{$dbLink->error}</pre>";
}
@mysqli_close($dbLink);
}
}
else {
echo 'Error! No ;ID was passed.';
}
?>