pg_lo_import

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

pg_lo_import — 將文件導(dǎo)入為大型對象

說明

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.

要使用大型對象（lo）接口，需要將其放置在事務(wù)塊中。

注意:

本函數(shù)以前的名字為 pg_loimport()。

參數(shù)

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

變量指明了要導(dǎo)入為大型對象的文件名。

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

導(dǎo)入成功則返回新建的大型對象的 OID，如果出錯則返回 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");
?>

參見