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

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

(PHP 5 >= 5.1.0, PHP 7) Returns the current in-transaction status of the server.

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

(PHP 4 >= 4.0.3, PHP 5, PHP 7) Send a NULL-terminated string to PostgreSQL backend

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Update table

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Import a large object from file

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Returns values from a result resource

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Set internal row offset in result resource

(PHP 5, PHP 7) Returns an array with client, protocol and server version (when available)