How can PHP be utilized to improve the caching process of images for better user experience?

To improve the caching process of images for better user experience, we can utilize PHP to set the cache-control headers for the images. By setting appropriate cache-control headers, we can instruct the browser to cache the images for a specified period of time, reducing the need to re-download them on subsequent visits. 

// Set cache-control headers for images
$expires = 60 * 60 * 24 * 30; // Cache for 30 days
header("Cache-Control: public, max-age=$expires");
header("Expires: " . gmdate('D, d M Y H:i:s', time() + $expires) . ' GMT');

Keywords

PHP caching images user experience optimization

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