How can PHP headers be effectively used to display images stored in a database?

To display images stored in a database using PHP headers, you can retrieve the image data from the database and then use PHP headers to set the content type to image/jpeg, image/png, or another appropriate image format. This tells the browser to expect image data and display it correctly.

// Retrieve image data from the database
$imageData = // fetch image data from the database using appropriate query

// Set the appropriate content type
header("Content-type: image/jpeg");

// Output the image data
echo $imageData;