[PHP-DB] Build-up of MySQL Sessions

[SpamSucks86]

I'm running windows 2000 and the latest releases of PHP and MySQL. All
database connections are made with mysql_pconnect(). Connections build
up, however. The only person connecting to this webserver at the moment
is myself. It seems that it opens connections and doesn't close them, or
opens unnecessary ones. How can I fix this? Thanks for any and all help.