(PHP 4 >= 4.2.0, PHP 5, PHP 7)
pg_lo_export — Export a large object to file
$connection
], int $oid
, string $pathname
)pg_lo_export() takes a large object in a PostgreSQL database and saves its contents to a file on the local filesystem.
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().
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().
oidThe OID of the large object in the database.
pathnameThe full path and file name of the file in which to write the large object on the client filesystem.
Returns TRUE on success or FALSE on failure.
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");
?>