phpsid

[alirezaok]

i saw a lof of website used of in their url ?phpsid=2152454

what is "?sid=" or "?phpsid=" that they are used?

this variable has a long of strang characters in all off them

Thanks

[bpat1434]

Usually it's the PHP Session ID. I can't say for certain what it's exact use is for, but my guess is it's a serialization of the session ID so they are sure that the session that is re-instantiating with the call session_start is the same one that you left with.

~Brett

[madwormer2]

Sessions usually leave a cookie on the users machine with the PHPSESSID so that it can determine the session ID on every page. If cookies are turned off, then this cannot happen, so the ssid is appended to the URL. Some people just leave it in the URL as a default anyway, because they can 😛