Unique key generation

Question

I looking for a way, specifically in PHP that I will be guaranteed to always get a unique key.

I have done the following:

strtolower(substr(crypt(tim         


        

Answer 1

I do believe that part of your issue is that you are trying to us a singular function for two separate uses... passwords and transaction_id

these really are two different problem areas and it really is not best to try to address them together.