pg_lo_read_all

(PHP 4 >= 4.2.0, PHP 5)

pg_lo_read_all — Reads an entire large object and send straight to browser

Описание

int pg_lo_read_all ( resource $large_object )

pg_lo_read_all() reads a large object and passes it straight through to the browser after sending all pending headers. Mainly intended for sending binary data like images or sound.

To use the large object interface, it is necessary to enclose it within a transaction block.

Замечание: This function used to be called pg_loreadall().

Список параметров

large_object: PostgreSQL large object (LOB) resource, returned by pg_lo_open().

Возвращаемые значения

Number of bytes read or FALSE on error.

Примеры

Пример #1 pg_lo_read_all() example


<?php
   header('Content-type: image/jpeg');
   $image_oid = 189762345;
   $database = pg_connect("dbname=jacarta");
   pg_query($database, "begin");
   $handle = pg_lo_open($database, $image_oid, "r");
   pg_lo_read_all($handle);
   pg_query($database, "commit");
?>

Смотрите также

pg_lo_read() - Read a large object