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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

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