Verifying PHP support

[Darryl Hoar]

Greetings,
I have a machine with 6.2 release installed on it.
I have apache 1.3.37 installed and am using it
for my personal website.   I want to install Gallery2
for doing photo albums.  The pkg info in ports says
it needs php support.   I did a pkg_info -a and did
not see php installed on my system.  How should
I add php support so that I can install Gallery2 ?

thanks,
Darryl

BTW, on a different machine a while ago, I tried
installing php after the fact and had a bit of a 
mess on my hands, thus the question.