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(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)
pg_lo_unlink — 删除一个大型对象
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。
注意:
本函数以前的名字为 pg_lounlink()。
connectionAn 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.
oid数据库中大对象的 OID。
| 版本 | 说明 |
|---|---|
| 8.1.0 |
现在 connection 参数接受 PgSql\Connection
实例，之前接受 resource。
|
示例 #1 pg_lo_unlink() 示例
<?php
// 要删除的大对象的 OID
$doc_oid = 189762345;
$database = pg_connect("dbname=jacarta");
pg_query($database, "begin");
pg_lo_unlink($database, $doc_oid);
pg_query($database, "commit");
?>