PHP: Hypertext Preprocessor (original) (raw)
pg_lo_unlink
(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)
pg_lo_unlink — Delete a large object
Description
pg_lo_unlink() deletes a large object with theoid. Returns [true](reserved.constants.php#constant.true) on success or [false](reserved.constants.php#constant.false) on failure.
To use the large object interface, it is necessary to enclose it within a transaction block.
Note:
This function used to be called pg_lounlink().
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().
Warning
As of PHP 8.1.0, using the default connection is deprecated.
oid
The OID of the large object in the database.
Return Values
Returns [true](reserved.constants.php#constant.true) on success or [false](reserved.constants.php#constant.false) on failure.
Changelog
| Version | Description |
|---|---|
| 8.1.0 | The connection parameter expects an PgSql\Connection instance now; previously, a resource was expected. |
Examples
Example #1 pg_lo_unlink() example
<?php // OID of the large object to delete $doc_oid = 189762345; $database = pg_connect("dbname=jacarta"); pg_query($database, "begin"); pg_lo_unlink($database, $doc_oid); pg_query($database, "commit"); ?>
See Also
- pg_lo_create() - Create a large object
- pg_lo_import() - Import a large object from file
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