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PHP. Руководство по PHP. 2005

pg_lo_export

Пред.

След.

pg_lo_export

(PHP 4 >= 4.2.0, PHP 5)pg_lo_export -- Export a large object to file

Описание

bool pg_lo_export (resource connection, int oid, string pathname)

bool pg_lo_export (int oid, string pathname)

pg_lo_export() takes a large object in a

PostgreSQL database and saves its contents to a file on the local

filesystem.

To use the large object interface, it is necessary to

enclose it within a transaction block.

Замечание:

This function used to be called pg_loexport().

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().

oid

The OID of the large object in the database.

pathname

The full path and file name of the file in which to write the

large object on the client filesystem.

Возвращаемые значения

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

Примеры

Пример 1. pg_lo_export() example


<?php
$database = pg_connect("dbname=jacarta");
pg_query($database, "begin");
$oid = pg_lo_create($database);
$handle = pg_lo_open($database, $oid, "w");
pg_lo_write($handle, "large object data");
pg_lo_close($handle);
pg_lo_export($database, $oid, '/tmp/lob.dat');
pg_query($database, "commit");
?>

Смотрите также

pg_lo_create

pg_lo_import

Отвечу на любые вопросы. С уважением, Дмитрий Владимирович.

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