(PHP 4 >= 4.2.0, PHP 5, PHP 7)
Export a large object to file
bool pg_lo_export ([ resource $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().
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.
Returns:
Returns TRUE
on success or FALSE
on failure.
Examples:
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"); ?>
See also:
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