我该如何处理php和apache中的图像加载

Question

I build my own picture gallery for my site with jquery and php.

The picture is quite big, about 200 KB. my hosting is bandwidth metered, not unlimited bandwidth. And than i try to optimize it with php every request that point to those image and surprisingly php handle it well. it can optimize image about 75% become about 50 KB with a almost similar image from the original one.

what do you think is better? i optimize the image every request with php or let apache handle image request but i need manualy optimize the image (with Photoshop) before i upload it to my webserver?

ps : i also need to track every image request, use ajax and build my own tracker for every request for page including ajax request.

Answer 1

i would process every image once when it's requested for first time and store processed image to new file. next time when file is requested we should look if there exists its processed copy and let the apache do the rest of job.