Generating a unique ID in PHP

Question

I\'m trying to generate a unique ID in php in order to store user-uploaded content on a FS without conflicts. I\'m using php, and at the moment this little snippet is responsib

Answer 1

string uniqid ([ string $prefix [, bool $more_entropy ]] )

Gets a prefixed unique identifier based on the current time in microseconds.

USAGE: $id = uniqid(rand(), true);