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pg_lo_export
Export a large object to file
(PHP 4 >= 4.2.0, PHP 5)
bool pg_lo_export ( resource connection, int oid, string pathname )bool pg_lo_export ( 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.
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
OIDof 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.
Examples
Example 1945. 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_import() |