pg_lo_open

Manuál PHP
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pg_lo_open

(PHP 4 >= 4.2.0, PHP 5)

pg_lo_open -- Open a large object

Popis

resource pg_lo_open ( resource connection, int oid, string mode )

pg_lo_open() opens a large object in the database and returns large object resource so that it can be manipulated.

Varování

Do not close the database connection before closing the large object resource.

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

Poznámka: This function used to be called pg_loopen().

Seznam parametrů

connection: PostgreSQL database connection resource. When connection is not present, the default connection is used. The default connection is the last connection made by pg_connect() or pg_pconnect().
oid: The OID of the large object in the database.
mode: Can be either "r" for read-only, "w" for write only or "rw" for read and write.

Návratové hodnoty

A large object resource or FALSE on error.

Příklady

Příklad 1. pg_lo_open() example


<?php
   $database = pg_connect("dbname=jacarta");
   pg_query($database, "begin");
   $oid = pg_lo_create($database);
   echo "$oid\n";
   $handle = pg_lo_open($database, $oid, "w");
   echo "$handle\n";
   pg_lo_write($handle, "large object data");
   pg_lo_close($handle);
   pg_query($database, "commit");
?>

Viz také

pg_lo_close()

pg_lo_create()

Tools

Sonstiges

Předcházející	Domů	Další
pg_lo_import	Nahoru