Can't connect to 7.4 DB

Hi this php code:



    // add to DB

    // database access parameters
    $host = "localhost";
    $user = "postgres";
    $pass = "postgres";
    $db = "cosc3p94";

    // open a connection to the database server
    $connection = pg_connect("host=$host dbname=$db user=$user
password=$pass");

    if (!$connection)
    {
            die("Could not open connection to database server");
    }


    ...

results in:

Could not open connection to database server

and I'm not sure why. The web browser, web server, and database are on
the same machine..

I checked the pg_hba.conf and it says this:

# TYPE  DATABASE    USER        IP-ADDRESS        IP-MASK
METHOD

local   all         all
trust
# IPv4-style local connections:
host    all         all         127.0.0.1         255.255.255.255
trust
# IPv6-style local connections:
host    all         all         ::1
ffff:ffff:ffff:ffff:ffff:ffff:ff$


which is untouched from the default settings...

Michael