How can PHP developers ensure that dynamically generated images are efficiently handled and displayed in HTML?

To ensure that dynamically generated images are efficiently handled and displayed in HTML, PHP developers can use caching techniques to store the generated images and serve them directly from the cache instead of regenerating them every time a request is made. This can help reduce server load and improve the overall performance of the application.

// Check if the image exists in the cache
if (file_exists('image_cache/' . $image_name)) {
    // Serve the image directly from the cache
    header('Content-Type: image/jpeg');
    readfile('image_cache/' . $image_name);
} else {
    // Generate the image dynamically
    $image = imagecreatefromjpeg('original_image.jpg');
    
    // Perform image manipulation operations here
    
    // Save the generated image to the cache
    imagejpeg($image, 'image_cache/' . $image_name);
    
    // Serve the generated image
    header('Content-Type: image/jpeg');
    imagejpeg($image);
    
    // Clean up resources
    imagedestroy($image);
}