PHP: pg_put_line - Manual

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Last updated: Sat, 27 Jan 2007

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# pg_put_line

(PHP 4 >= 4.0.3, PHP 5)

pg_put_line -- Send a NULL-terminated string to PostgreSQL backend

## Описание

bool pg_put_line ( string data )
bool pg_put_line ( resource connection, string data )

pg_put_line() sends a NULL-terminated string to the PostgreSQL backend server. This is needed in conjunction with PostgreSQL's `COPY FROM` command.

`COPY` is a high-speed data loading interface supported by PostgreSQL. Data is passed in without being parsed, and in a single transaction.

An alternative to using raw pg_put_line() commands is to use pg_copy_from(). This is a far simpler interface.

> Замечание: The application must explicitly send the two characters "\." on the last line to indicate to the backend that it has finished sending its data, before issuing pg_end_copy().

Внимание
Use of the pg_put_line() causes most large object operations, including pg_lo_read() and pg_lo_tell(), to subsequently fail. You can use pg_copy_from() and pg_copy_to() instead.

## 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().

`data`

  A line of text to be sent directly to the PostgreSQL backend. A `NULL` terminator is added automatically.

## Возвращаемые значения

Возвращает `TRUE` в случае успешного завершения или `FALSE` в случае возникновения ошибки.

## Примеры

Пример 1. pg_put_line() example

`<?php
$conn = pg_pconnect("dbname=foo");
pg_query($conn, "create table bar (a int4, b char(16), d float8)");
pg_query($conn, "copy bar from stdin");
pg_put_line($conn, "3\thello world\t4.5\n");
pg_put_line($conn, "4\tgoodbye world\t7.11\n");
pg_put_line($conn, "\\.\n");
pg_end_copy($conn);
?>`

## Смотрите также

pg_end_copy()

add a note User Contributed Notes
pg_put_line
kurt at nospam dot milliganshome dot net
22-Aug-2005 09:08
`This is the function you need if you are running into the infamous "must be superuser to COPY to or from a file" error from postgres.`
add a note
pg_query_params pg_prepare

Last updated: Sat, 27 Jan 2007
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