Php/docs/function.pg-lo-unlink
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pg_lo_unlink
(PHP 4 >= 4.2.0, PHP 5, PHP 7)
pg_lo_unlink — 删除一个大型对象
说明
pg_lo_unlink
( resource $connection
, int $oid
) : bool
pg_lo_unlink() 删除由 oid
指定的大型对象。成功时返回 true
, 或者在失败时返回 false
。
要使用大型对象(lo)接口,需要将其放置在事务块中。
Note:
本函数以前的名字为
pg_lo_unlink()
。
参数
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.
返回值
成功时返回 true
, 或者在失败时返回 false
。
范例
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");?>