pg_lo_read_all

(PHP 4 >= 4.2.0, PHP 5, PHP 7)

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

Descrierea

pg_lo_read_all ( resource $large_object ) : int

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.

Notă:

This function used to be called pg_loreadall().

Parametri

large_object

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

Valorile întoarse

Number of bytes read or FALSE on error.

Exemple

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");
?>

A se vedea și