input tag type=file

[Anon]

Hi all,

Does anyone have any resources about the use of the input tag within forms when the type is equal to file?
I'm specifically interested in what variables are created when used with PHP.

I have some working image upload code but I'd really like to completely understand it.

My books and all the Web resources I've looked at do not fully explain how name, size and type are instantiated or if there are other attributes available sent from the form.

Thanks

Chris

[van__]

where file is refered to as $file
name type _size are all set by PHP automagically. So perhaps that would explain why your books and other material doesn't go indepth on that.

As far as how it sets that information, I believe it establishes that when it creates the temp file from the upload, since it would need to create an association of attributes to correctly restore the file after moved from the temp directory as well as ensuring that the full filesize was intact.

But do not worry yourself with these details, just be confident that they are there and put them to use.

[Anon]

Thanks - it's just that I'm one of those people that are tortured by not understanding something fully. However, if it's something deep in the inner workings of PHP then I'm happy to leave it that way 🙂

Chris