I've just installed php3-mysql-3.0.16 and I'm having problems using mysql
functions.

With a simple test file I get:

Fatal error: Call to unsupported or undefined function mysql_connect()

I doesn't seem to be finding the mysql.so file:
-r--r--r--  1 root  wheel  26737 Apr 29 15:40 /usr/pkg/lib/php3/mysql.so

I've stopped and restarted apache, ran several different tests, and
the last access time on mysql.so never changes.

Is there some configuration file I need to change?