my host has its own set of instructions on how to install php.
1. Run the following command: % vinstall php4-dso
2. When you run the vinstall command, you will be given the option to select which extensions you want to use. In order to not waste memory on your Virtual Private Server, we recomend that you only select extensions you will actually be using. If you find you need to add or remove extensions at a later time, you can manually edit the php.ini file, or use the vinstall command to change the active extensions.
so the question is, which extensions should i install? which are rare and i am unlikely to use?
and if i'll need to modify php.ini file later, how will i do that?