Question

For a client I have build a simple script that uploads multiple files(images), resizes them, stores them on a temporary folder and then later on move them to their destination.

Resizing is done using PHP’s GD, as Imagick is not available.

These images are about 2/4 MB a piece and the client uploads about 30 images in one shot.
I used HTML5’s multiple=”” attribute which all works fine.

In tests all worked fine because I used Windows standard wallpaper images.

I can’t find the source of the problem.
When uploading more then 1 image, the script failes debugging tells me it does upload the second image but won’t resize.

I checked the memory usage for the images which is aprox 105724352 bytes each.

My PHP ini settings:

max_execution_time = 300     
max_input_time = 600    
memory_limit = 200M      

So you see at the second image the memory reached it limit, making my script stop. Is that correct?

If so, how wise is it to upgrade the memory limit?

Thanks in advance!

EDIT:

It now seems the GD Function imagecreatefromjpeg cant handle files with a resolution bigger then 3500px wide, my files are bigger then 5000px wide.

Does anyone have a work arround for this?
At this point I am wondering if it is wise to have the client on a shared host at all if he needs so much memory for these images.

Answer 1

So you see at the second image the memory reached it limit, making my
script stop. Is that correct?

Check your Apache error logs under (**nix system) /var/log/apache2/error.log to see if it is really the problem.

If so, how wise is it to upgrade the memory limit?

You should not hande multiple image operations in one script. Make ajax queries for each, handle them in seperate instances.