To connect to PostgreSQL, you can use either a DSN or an ODBC connection string. Both of these methods use the odbc_connect function.

Connect to a DSN

To connect using a DSN:

$cnx = odbc_connect("CData PostgreSQL Sys", "", "");

Provide a Driver Connection String

To connect using an ODBC connection string:

$cnx = odbc_connect("DRIVER={CData ODBC Driver for PostgreSQL};User=postgres;Password=admin;Database=postgres;Server=127.0.0.1;Port=5432", "", "");