Don't Cache Images - PHP Solution

anticacheimg.php

<!-- This img will be cached. -->
<img src="http://example.com/dynamic_image.png">

<!-- This img will not be cached. -->
<img src="http://example.com/dynamic_image.png?x=<?php echo time(); ?>">

Thats a small little hack to prevent caching images.

Browsers will load the second image new, because they didn't found a cache version with the same filename. 👍