(PHP 4 >= 4.2.0, PHP 5, PHP 7)
pg_lo_open — Open a large object
$mode) : resource
pg_lo_open() opens a large object in the database and returns large object resource so that it can be manipulated.
Do not close the database connection before closing the large object resource.
To use the large object interface, it is necessary to enclose it within a transaction block.
This function used to be called pg_loopen().
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().
The OID of the large object in the database.
Can be either "r" for read-only, "w" for write only or "rw" for read and write.
A large object resource or
FALSE on error.
Example #1 pg_lo_open() example
$database = pg_connect("dbname=jacarta");
$oid = pg_lo_create($database);
$handle = pg_lo_open($database, $oid, "w");
pg_lo_write($handle, "large object data");