pg_lo_export
(PHP 4 >= 4.2.0, PHP 5)
pg_lo_export — Export a large object to file
Description
bool pg_lo_export
( resource $connection
, int $oid
, string $pathname
)
bool pg_lo_export
( int $oid
, string $pathname
)
To use the large object interface, it is necessary to
enclose it within a transaction block.
Note:
This function used to be called pg_loexport().
Parameters
-
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.
-
pathname
-
The full path and file name of the file in which to write the
large object on the client filesystem.
Return Values
Returns TRUE on success or FALSE on failure.
Examples
Example #1 pg_lo_export() example
<?php
$database = pg_connect("dbname=jacarta");
pg_query($database, "begin");
$oid = pg_lo_create($database);
$handle = pg_lo_open($database, $oid, "w");
pg_lo_write($handle, "large object data");
pg_lo_close($handle);
pg_lo_export($database, $oid, '/tmp/lob.dat');
pg_query($database, "commit");
?>
pg_lo_create
