Once you have the source on your drive and decompressed, you'll need to run the PHP configure script. To keep things simple, this first time around, I'll use a very basic config. cd into your PHP source directory and run:

and then:

And you should be all set to run PHP via command line.

Once you have PHP installed, it's time to move on to PHP-Gtk. This is the part that can sometimes be a bit tricky. If you run into a roadblock, I recommend just starting over and be sure to include all the steps. I once spent hours trying to track down an issue and it turned out that I had forgotten to run buildconf beforehand. Provided all the planets are aligned, the install should be very simple if you follow all the steps below.

cd into your PHP-Gtk directory and run:

If you see feedback saying you should run aclocal then, you guessed it, run aclocal:

now:

and finally:

This should take care of the basic PHP-Gtk functionality and the normal PHP functions.