How can PHP be used to display images with a time delay?

To display images with a time delay in PHP, you can use the `header` function to set the content type to image and then use the `sleep` function to introduce a delay before sending the image data to the browser.

<?php
// Set content type to image
header('Content-Type: image/jpeg');

// Load the image file
$image = imagecreatefromjpeg('image.jpg');

// Introduce a 2-second delay
sleep(2);

// Output the image to the browser
imagejpeg($image);

// Free up memory
imagedestroy($image);
?>