(PHP 4, PHP 5, PHP 7) Return the TTY name associated with the connection

(PHP 4, PHP 5, PHP 7) Get the options associated with the connection

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Returns the last row's OID

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Returns number of affected records (tuples)

(PHP 5 >= 5.1.0, PHP 7) Sends a request to create a prepared statement with the given parameters, without

(PHP 5 >= 5.1.0, PHP 7) Submits a request to create a prepared statement with the given parameters, and

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Returns the printed length

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Test if a field is SQL NULL

(PHP 5 >= 5.6.0, PHP 7) Poll the status of an in-progress asynchronous PostgreSQL connection attempt.

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Gets the backend's process ID