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이 문서에서는 PHP 중국어 웹사이트 매뉴얼 풀어 주다
(PHP 4 >= 4.2.0, PHP 5)
pg_lo_open — 打开一个大型对象
$connection
, int $oid
, string $mode
) pg_lo_open() 打开一个大型对象并返回大型对象资源号。该资源号内封装了连接号。oid
指定了有效的大型对象的 oid,mode
可以为 "r","w" 或者 "rw"。如果失败则返回 FALSE
。
在关闭大型对象资源之前不要关闭数据库连接。
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_loopen()。
参见 pg_lo_close() 和 pg_lo_create() 。
[#1] metator at netcabo dot pt [2005-08-29 11:15:12]
Just for the record, a user must be a superuser (database owner) in order to invoke pg_lo_open() (though pg_lo_create() may be invoked...). This opens a gigantic security hole in the db. If a user is not a superuser, db will raise an error with message "Can't create Large Object.".
Thus, imho, one should use pg_escape_bytea() instead.