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

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Returns the field number of the named field

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

(PHP 5 >= 5.4.4, PHP 7) Escape a identifier for insertion into a text field

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

(PHP 5 >= 5.1.0, PHP 7) Returns the type ID (OID) for the corresponding field number

(PHP 4 >= 4.0.6, PHP 5, PHP 7) Returns the last notice message from PostgreSQL server

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

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Fetch a row as an associative array

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