[PHP-INSTALL] Upgrading from PHP4 RPMs to PHP5 from source

[John Swartzentruber]

It seems like this would be a FAQ, but I haven't found an answer in 
the FAQ, the archives, Google, etc.

I have a new server on which I've installed Fedora Core 2. This is 
just a small server on which I will host a few small mailing lists and 
web sites. Mostly it is a platform that I will use to learn PHP, and 
PHP5 seems like a good place to start for a C++ OOP programmer.

My questions are what the procedure is for installing PHP5 from source 
on a system that has Apache2 and PHP 4.3.8 installed from RPMs (as 
part of the OS install)?

Can I use the default (i.e. RPM) version of Apache or do I need to 
install it from source? I'm aware of the warnings against Apache2 in a 
production environment, so we can ignore that issue for now.

Do I need to uninstall the PHP 4.3.8 RPMs? If I do, will I run into 
dependency issues down the road when other packages are updated? Or 
can I leave the existing PHP stuff alone and just point to the new PHP 
in my Apache config files?

I'm something of a Linux newbie, but less so every day. Thanks for any 
help you can provide.