I believe Sqlite is actually done with a .dll enabled in PhP extensions in the php.ini. I switch over to sqplite a while back and altho I use the 2.0x version I am well pleased with it it runs my simple game very well. Here are 2 links that may help:
This on is a Firefox addin but I think it only support version 3.x
Uh there are a lot of benefits to using sqlite for people like me cause the syntax is very easy to learn and works really, simple and clean. I converted my "Mysql" db game over completely and am so glad I did.
Hope this helps? If anything some new bookmarks to add and info to follow!