Question : PHP session side-effect

I have a multi-page form, where I'm storing all values in a session as the user submits each page. This is working otherwise fine, but when I create a "back" link and use it to go back to previous page, I get the following error:

"
Warning: Unknown: Your script possibly relies on a session side-effect which existed until PHP 4.2.3. Please be advised that the session extension does not consider global variables as a source of data, unless register_globals is enabled. You can disable this functionality and this warning by setting session.bug_compat_42 or session.bug_compat_warn to off, respectively in Unknown on line 0
"

I've read some solutions from before, but they've included editing php.ini, which I'm not going to be able to do on the production server. Therefore I'd like to know how to use sessions correctly on a multi-page form without having to change anything in the php configuration file.

Answer : PHP session side-effect

If it does turn out to be a DNS server issue with Comcast, you do not have to use Comcast servers for DNS, or Google's or Level3's.

I recommend you run some tool such as GRC's DNSBench at http://www.grc.com/dns/benchmark.htm or Google's namebench at http://code.google.com/p/namebench/ to find the fastest DNS servers for your location. I would also rerun these tools periodically because things do change.

Lee