(PHP 4 >= 4.2.0, PHP 5, PHP 7) Get asynchronous query result

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Get meta data for table

(PHP 4, PHP 5, PHP 7) Get the database name string

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Open a large object

(PHP 4 >= 4.0.3, PHP 5, PHP 7) Set the client encoding

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Returns the number of rows in a result

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Get connection status

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Deletes records

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Get connection is busy or not

(PHP 4 >= 4.0.1, PHP 5, PHP 7) Disable tracing of a PostgreSQL connection