The PDO_FIREBIRD Data Source Name (DSN) is composed of the following elements:
The DSN prefix is firebird:.
firebird:
DataSource
The hostname on which the database server resides.
Port
The port number for the server on which the database is running.
Database
The name of the database.
User
The name of the user that will connect to the database.
Password
The password for the user.
The following example shows a PDO_FIREBIRD DSN for connecting to Firebird and Interbase databases:
firebird:User=john;Password=mypass;Database=DATABASE.GDE;DataSource=localhost;Port=3050