(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)
pg_lo_import — Importa un large object da un file
pg_lo_import() crea un nuovo large object nel database utilizzando un file sul filesystem come origine dati.
Per utilizzare l'interfaccia large object, è necessario racchiuderla in un blocco di transazione.
Nota:
Questa funzione si chiamava pg_loimport().
connectionAn PgSql\Connection instance.
When connection is unspecified, the default connection is used.
The default connection is the last connection made by pg_connect()
or pg_pconnect().
As of PHP 8.1.0, using the default connection is deprecated.
pathnameIl percorso completo e il nome del file sul filesystem del client da cui leggere i dati del large object.
object_id
Se viene fornito un object_id la funzione
proverà a creare un large object con questo id, altrimenti il server
assegna un object ID libero. Il parametro
si basa sulle funzionalità apparse
per la prima volta in PostgreSQL 8.1.
L'OID del large object appena creato, o false in caso di fallimento.
| Versione | Descrizione |
|---|---|
| 8.1.0 |
The connection parameter expects an PgSql\Connection
instance now; previously, a resource was expected.
|
Example #1 Esempio di pg_lo_import()
<?php
$database = pg_connect("dbname=jacarta");
pg_query($database, "begin");
$oid = pg_lo_import($database, '/tmp/lob.dat');
pg_query($database, "commit");
?>
its not very clear if pg_lo_import needs to have pg_lo_open called first. Because pg_lo_import handles the process of writign to the file, it seems logical that pg_lo_open does not need to be called. However due to the ugly nature of how postgres handles oid objects, it would be nice to have this documented.Due to a bug, OLD API does not available with PHP 4.2.0 and 4.2.1.
PHP 4.2.2 will support OLD API again and will be kept long enough.
New API will be available PHP 4.2.0 to later versions.Due to a bug, PHP 4.2.0 and 4.2.1 does not support pg_lo_import() old API. It's fixed in PHP 4.2.2.
BTW, new API will be always available from PHP 4.2.0 to later versions. Older API will be kept long enough, also.it works for me (php-4.2.1)
not like this
int pg_lo_import ( string pathname [, resource connection])
but
int pg_lo_import ( resource connection, string pathname )
don't know the reason