Anyone else ever had issues with uniqid()?

[rxbanditboy1112]

Every time a costumer  from another country (and sometimes from the US) comes to my website the $unique_cid = md5(uniqid(rand(),TRUE)); fails and generates a 3 digit number.... I just implemented a fix so that it checks to see if that id is already in the database but it may end up being linear and killing the whole point of this part of the program. Anyways....  Let me know if anyone else has any idea why this could possibly generate a 2-3 digit number.

 

I heard uniqid() has to do with system time. Perhaps that is the problem

 

Thanks!