error checking with files

[Lcousins]

Hi!!

Im currently in the process of making a resources module for my site, its basically designed to allow specific users to upload files with comments about them for others to look at and download.

Everythings working great except I realised if there was a file with the same name already in the upload folder it would just over write it with the new one of the same name.

I know how to check if a value from a database or form is present but Im having mind block on how to transfer this logic onto files. Basically I need to know how I can check whether a file with a particular name already exists, so that i can get the upload script to act accordingly and not just overwrite the file.

any help would be appreciated 🙂

Luke

[thessoro]

you may look at the file managing section in the php manual.
One idea could be uploading all the stuff to a temp folder, then check is the uploaded file already exists in the other folder.

/public_html
/public_html/temp
/public_html/files

imagine you have a file in temp and you have its name in the variable $filename. You can do a if (is_file ("../files/$filename")); to see if the file already exists. If so, just cp the name to the /files folder with another name. (some "string" and "random" functions could help you with this issue)

[Lcousins]

thanks for that, it didnt directly solved my problem but your suggestion unblocked my mind, ive found the relevant bit of the manual and ha ee got it working how I needed it. Many thanks 🙂

luke

[jimson]

u may try to store the uploaded file name and path in the database.

query when user upload the file...

hope this can help