What is the purpose of using PHP to display an image within a PHP file?

When displaying an image within a PHP file, the purpose is to dynamically generate the image content based on certain conditions or parameters. This can be useful for creating dynamic image thumbnails, processing images on-the-fly, or securely serving images based on user authentication. 

<?php
// Set the content type header to specify that the response will be an image
header('Content-Type: image/jpeg');

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

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

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

Keywords

PHP image display file handling GD library image manipulation

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