How to Connect remote DB server?

[email protected] ("Patrick LOK") Wed, 12 Mar 2003 19:28:36 +0800
Newsgroups php.db,php.dev,php.general
Message-ID <[email protected]>
It is possible to connect a remote db server using xxxxx_connect? 
e.g. a PostgreSQL in server PSQLDB, ip=192.168.0.100  and a MSSQL server MSSQLDB, ip=192.168.0.110

I tried pgsql_connect("psqldb","administrator","") & pgsql_connect("192.168.0.100","administrator","") but failed!

Error is "Unable to connect to server: psqldb in psqltest.php on line 2" & "Unable to connect to server: 192.168.0.100 in psqltest.php on line 2"

Can anyone help?

regards
./pl