Is there a way to force browsers to refresh/download images?

Question

I have a problem where users are reporting that their images aren\'t being uploaded and the old ones are still there. On closer inspection the new images are there, they jus

Answer 1

in PHP you can use this trick

The time() function show the current timestamp. Every page load is different. So this code deceive the browser: it read another path and it "think" that the image is changed since the user has visited the site the last time. And it has to re-download it, instead of use the cache one.