mysql数据库怎么支持图片

CREATE TABLE images (
  id INT PRIMARY KEY AUTO_INCREMENT,
  filename VARCHAR(255),
  filetype VARCHAR(255),
  data LONGBLOB
);

$filename = 'image.jpg';
$filetype = 'image/jpeg';
$data = file_get_contents($filename);

$query = "INSERT INTO images (filename, filetype, data) VALUES (?, ?, ?)";
$stmt = $pdo->prepare($query);
$stmt->bindParam(1, $filename);
$stmt->bindParam(2, $filetype);
$stmt->bindParam(3, $data, PDO::PARAM_LOB);
$stmt->execute();

$id = 1;

$query = "SELECT filename, filetype, data FROM images WHERE id = ?";
$stmt = $pdo->prepare($query);
$stmt->bindParam(1, $id);
$stmt->execute();

$row = $stmt->fetch(PDO::FETCH_ASSOC);
if ($row) {
  header("Content-Type: " . $row['filetype']);
  echo $row['data'];
}