pg_lo_export
Export a large object to file
Description
bool pg_lo_export(PgSql\Connection $connection
= ?, 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
-
An 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.
WarningAs of PHP 8.1.0, using the default connection is deprecated.
-
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");
?>