CODEWITHSUNDEEP
phpupload
enchance
enchance

Reputation: 30421

PHP: Is the $_FILES ['tmp_name'] unique?

I've created my first site with an image uploading feature and this just crossed my mind. Is ['tmp_name'] in $_FILES a unique value like in uniqid()?

Upvotes: 0

Views: 1246

Answers (3)

Niet the Dark Absol
Niet the Dark Absol

Reputation: 324640

It's unique in that you can never have two files with the same name at any given time. However since the files are temporary they will most likely be deleted shortly after their creation, so the filenames free up again.

Upvotes: 1

Vyktor
Vyktor

Reputation: 20997

It's unique for the time being. As soon as you delete it (it should be deleted automatically when the script finishes) some file may and eventually will get the same name. PHP manual doesn't say that tmp_name is unique, so simplified answer is no, it isn't.

Upvotes: 4

Paul Bain
Paul Bain

Reputation: 4397

Yes, PHP generates this to uniquely name an uploaded file. You can't guarantee the file will stay around forever depending on where it's stored to. Often it's /var/tmp

Upvotes: 1

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