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

Popis

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.

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

Parametre

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

Vrátené hodnoty

Number of bytes read or FALSE on error.

Príklady

Example#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");
?>

Tiež pozri

pg_lo_read()