哈希空间 Ctrl + F 进行搜索
首页 php手册中文版 CSS中文手册 哈希文档 Markdown在线工具

PHP pg 组件

pg_lo_import

(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)

pg_lo_import将文件导入为大型对象

说明

pg_lo_import(resource $connection = ?, string $pathname, mixed $object_id = ?): int

pg_lo_import() creates a new large object in the database using a file on the filesystem as its data source.

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_loimport()

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().

pathname

变量指明了要导入为大型对象的文件名。

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.

返回值

导入成功则返回新建的大型对象的 OID,如果出错则返回 false

范例

示例 #1 pg_lo_import() 例子

<?php
   $database 
pg_connect("dbname=jacarta");
   
pg_query($database"begin");
   
$oid pg_lo_import($database'/tmp/lob.dat');
   
pg_query($database"commit");
?>

参见

打开 哈希空间 微信小程序中查看更佳