pg_lo_open opens a large object in the database and returns an PgSql\Lob instance so that it can be manipulated.
Do not close the database connection before closing the PgSql\Lob instance.
To use the large object interface, it is necessary to enclose it within a transaction block.
This function used to be called pg_loopen.
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.
As of PHP 8.1.0, using the default connection is deprecated.
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.
An PgSql\Lob instance, or false on failure.
|8.1.0||Returns an PgSql\Lob instance now; previously, a resource was returned.|
|8.1.0||The connection parameter expects an PgSql\Connection instance now; previously, a resource was expected.|