PHP kézikönyv
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# pg_lo_write

(PHP 4 >= 4.2.0, PHP 5)

pg_lo_write -- Write to a large object

## Leírás

int pg_lo_write ( resource large_object, string data [, int len] )

pg_lo_write() writes data into a large object at the current seek position.

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

> Megjegyzés: This function used to be called pg_lowrite().

## Paraméterek

large_object

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

data

  The data to be written to the large object. If len is specified and is less than the length of data, only len bytes will be written.

len

  An optional maximum number of bytes to write. Must be greater than zero and no greater than the length of data. Defaults to the length of data.

## Visszatérési értékek

The number of bytes written to the large object, or `FALSE` on error.

## Példák

Példa 1. pg_lo_write() example

`<?php $doc_oid = 189762345; $data = "This will overwrite the start of the large object."; $database = pg_connect("dbname=jacarta"); pg_query($database, "begin"); $handle = pg_lo_open($database, $doc_oid, "w"); $data = pg_lo_write($handle, $data); pg_query($database, "commit"); ?>`

## Lásd még

pg_lo_create()
pg_lo_open()

Előző | Tartalom | Következő
pg_lo_unlink | Fel | pg_meta_data