IT. Expert System.

PHP

Read a large object


pg_lo_read

(PHP 4 >= 4.2.0, PHP 5)

pg_lo_readRead a large object

Description

string pg_lo_read ( resource $large_object [, int $len = 8192 ] )

pg_lo_read() reads at most len bytes from a large object and returns it as a string.

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

Note:

This function used to be called pg_loread().

Parameters

large_object

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

len

An optional maximum number of bytes to return.

Return Values

A string containing len bytes from the large object, or FALSE on error.

Examples

Example #1 pg_lo_read() example

<?php
   $doc_oid 
189762345;
   
$database pg_connect("dbname=jacarta");
   
pg_query($database"begin");
   
$handle pg_lo_open($database$doc_oid"r");
   
$data pg_lo_read($handle50000);
   
pg_query($database"commit");
   echo 
$data;
?>

See Also



Content

Android Reference

Java basics

Java Enterprise Edition (EE)

Java Standard Edition (SE)

SQL

HTML

PHP

CSS

Java Script

MYSQL

JQUERY

VBS

REGEX

C

C++

C#

Design patterns

RFC (standard status)

RFC (proposed standard status)

RFC (draft standard status)

RFC (informational status)

RFC (experimental status)

RFC (best current practice status)

RFC (historic status)

RFC (unknown status)

IT dictionary

License.
All information of this service is derived from the free sources and is provided solely in the form of quotations. This service provides information and interfaces solely for the familiarization (not ownership) and under the "as is" condition.
Copyright 2016 © ELTASK.COM. All rights reserved.
Site is optimized for mobile devices.
Downloads: 1794 / . Delta: 0.02328 с