MySQL and PHP won't work

["Justin Vanderhooft" <pocketgopherstudios@xxxxxxxxx>]

I have had PHP and Apache installed and working for quite some time
now as I teach myself PHP.  I am now trying to get MySQL to work but
it wont.  I tried to install phpmyadmin and whenever I start it I get
a mysql extension can't be found error.  I think I correctly enabled
the extensions, but I don't know.  Any guidance would be apreciated.