PHP: pg_parameter_status - Manual

downloads | documentation | faq | getting help | mailing lists | reporting bugs | php.net sites | links | conferences | my php.net

search for in the

pg_pconnect pg_options

Last updated: Sat, 27 Jan 2007

view this page in

# pg_parameter_status

(PHP 5)

pg_parameter_status -- Looks up a current parameter setting of the server.

## Описание

string pg_parameter_status ( resource connection, string param_name )
string pg_parameter_status ( string param_name )

Looks up a current parameter setting of the server.

Certain parameter values are reported by the server automatically at connection startup or whenever their values change. pg_parameter_status() can be used to interrogate these settings. It returns the current value of a parameter if known, or `FALSE` if the parameter is not known.

Parameters reported as of PostgreSQL 8.0 include `server_version`, `server_encoding`, `client_encoding`, `is_superuser`, `session_authorization`, `DateStyle`, `TimeZone`, and `integer_datetimes`. (`server_encoding`, `TimeZone`, and `integer_datetimes` were not reported by releases before 8.0.) Note that `server_version`, `server_encoding` and `integer_datetimes` cannot change after PostgreSQL startup.

PostgreSQL 7.3 or lower servers do not report parameter settings, pg_parameter_status() includes logic to obtain values for `server_version` and `client_encoding` anyway. Applications are encouraged to use pg_parameter_status() rather than ad hoc code to determine these values.

Предостережение
On a pre-7.4 PostgreSQL server, changing `client_encoding` via `SET` after connection startup will not be reflected by pg_parameter_status().

## Список параметров

`connection`

  PostgreSQL database connection resource. When `connection` is not present, the default connection is used. The default connection is the last connection made by pg_connect() or pg_pconnect().

`param_name`

  Possible `param_name` values include `server_version`, `server_encoding`, `client_encoding`, `is_superuser`, `session_authorization`, `DateStyle`, `TimeZone`, and `integer_datetimes`.

## Возвращаемые значения

A string containing the value of the parameter, `FALSE` on failure or invalid `param_name`.

## Примеры

Пример 1. pg_parameter_status() example

`<?php $dbconn = pg_connect("dbname=publisher") or die("Could not connect"); echo "Server encoding: ", pg_parameter_status($dbconn, "server_encoding"); ?>`

Результат выполнения данного примера:

    Server encoding: SQL_ASCII

add a note User Contributed Notes
pg_parameter_status
There are no user contributed notes for this page.
pg_pconnect pg_options

Last updated: Sat, 27 Jan 2007
show source | credits | stats | sitemap | contact | advertising | mirror sites
Copyright © 2001-2007 The PHP Group
All rights reserved.
This mirror generously provided by: Yahoo! Inc.
Last updated: Sat Mar 10 10:36:09 2007 PST