multi image upload/manipulating? feasible?

Rodders

Hi
I would like to know if this is possible before I start trying! I have a site which lets registered users login and create a portfolio for themselves. We would like to include up to 3 images on the portfolio page and allow the users to upload their own photos.

The plan is to have a form which allows them to pick up to 3 images from their hard drive or elsewhere from their PC. The files will then be uploaded and checked that they are image files (GIF, JPG etc.). It will then resize the image to predefined dimensions (that is the website owners choice) without altering the scaling - so if the scale is out then it would trim the image accordingly.

The file will also need to be resized in terms of disk space so that it is less than say 20K. I would imagine that it makes sense to also make all images into GIFs or JPGs at this point. Is it possible to specify the maximum file size and for the functions to work out the correct compression to use?

It will then give the image a suitable name that corresponds to the users' login name and move the file to a directory/folder on our server ready to be linked into the users' portfolio page.

I believe that PHP's GD libraries (or something!?) might be required - my server has these installed and ready.

I don't need a solution, just some clue as to whethr it will work or not.

Thanks

Rich

rincewind456

Fairly straightforward take a look at either of these tutorials.
http://www.plus2net.com/php_tutorial/php_file_upload.php
http://www.tutorialized.com/tutorial/Upload-and-Resize-an-Image/817

Rodders

Nice answer. Thanks.
I'll post back if there's anything that troubles me (which is likely!) but in the meantime...

.....muchos gracias

Rich

Rodders

I've now managed to create a system which allows users to upload upto 3 image files at any time. It checks that they are GIF, JPG or PNG and then move them into a folder on the server. It then updates the database.

I've also created a script which modifies the image into a smaller one to be used as a thumbnail on-the-fly.

One problem that the client has come up with is that they expect some users to want to upload large images (<1M😎 from digital cameras. I said that trying to upload 3 of these at one time could take a very long time depending on the internet connection in use.

I wondered if anyone had any suggestions on how to get around this? Is it sensible to try and upload 3MB of file? Is it possible to reduce the filesize prior to uploading?

Also, my thumbnail script had a problem with one of my JPEG files which I believe was caused because the file was CMYK format ! Is anyone aware of a workaround for this?