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pg_lo_open (PHP 4 >= 4.2.0, PHP 5) pg_lo_open -- Open a large object Описаниеresource 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.
| Внимание |
Do not close the database connection before closing the large
object resource.
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To use the large object interface, it is necessary to
enclose it within a transaction block.
Замечание:
This function used to be called pg_loopen().
Список параметров
- 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.
Возвращаемые значения
A large object resource or FALSE on error.
Примеры
Пример 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");
?>
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