Best method to generate unique filenames when uploading files PHP

php image upload unique identifier
Adamski picture Adamski · Dec 7, 2010 · Viewed 63.9k times · Source

Can any one suggest the best practice to generate unique file names for file uploads to avoid duplicate Entries?

Thanks In Advance.

Answer

ryudice picture ryudice · Dec 7, 2010

I usually either create a UID using uniqid() function for the filename or create a folder with the name of the username who is uploading the file and leave the original filename. The disadvantage of the first one is that you will have to save the original filename somewhere to show to the user.

Related questions

Convert JPG/GIF image to PNG in PHP?

Possible Duplicate of Convert jpg image to gif, png & bmp format using PHP I have a PHP form that allows image uploads and checks exif_imagetype(); to make sure an image is valid. However, I want all formats, PNG, …

Read More
Full Secure Image Upload Script

I don't know if this going to happen, but I will try it. For past hour I did research on image upload safety. I learned that there a lot of functions to test the upload. In my project, I need …

Read More
generate random string in php for file name

How would I go about creating a random string of text for use with file names? I am uploading photos and renaming them upon completion. All photos are going to be stored in one directory so their filenames need to …

Read More