(PHP 4 >= 4.2.0, PHP 5)
pg_lo_import — 将文件导入为大型对象
$connection
], string $pathname
)在 PHP 4.2.0 版本之前，本函数语法不一样，见如下定义：
$pathname
[, resource $connection
] )
pathname 变量指明了要导入为大型对象的文件名。导入成功则返回新建的大型对象的 oid，如果出错则返回 FALSE。
要使用大型对象（lo）接口，需要将其放置在事务块中。
Note: 当启用 安全模式时， PHP 会检查被操作的文件或目录是否与被执行的脚本有相同的 UID（所有者）。
Note:
本函数以前的名字为 pg_loimport()。
参见 pg_lo_export() 和 pg_lo_open()。
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().
pathname
The full path and file name of the file on the client filesystem from which to read the large object data.
object_id
If an object_id is given the function
will try to create a large object with this id, else a free
object id is assigned by the server. The parameter
was added in PHP 5.3 and relies on functionality that first
appeared in PostgreSQL 8.1.
The OID of the newly created large object, or
FALSE on failure.
| 版本 | 说明 |
|---|---|
| 5.3.0 |
The optional |
| 4.2.0 | The syntax of this function changed. It used to be:
int pg_lo_import
( string
$pathname
[, resource $connection
] ) |
Example #1 pg_lo_import() example
<?php
$database = pg_connect("dbname=jacarta");
pg_query($database, "begin");
$oid = pg_lo_import($database, '/tmp/lob.dat');
pg_query($database, "commit");
?>