Question

我使用的是两个域名（＆＃39;域名1＆＃39;，＆＃39;域名2＆＃39;）和2个服务器（＆＃39;服务器A＆＃39;以及＆＃39;服务器B＆＃39 ）。＆＃39; domain1的＆＃39;是主域名。＆＃39; domain2＆＃39;，我用作后端，用于存储数据。因此数据将存储在服务器B中。当我使用＆＃39; domain1＆＃39;在浏览器中，它将显示存储在服务器B＆＃39;中的数据。。我没有使用服务器A＆＃39;

我做了一些代码。请仔细阅读，让我知道我必须做的更正。代码如下，

//these hostname,dbname,user and password from server B,(is this correct?)
$hostname   =   "1.1.1.1"   ;
$database   =   "db_B"      ;
$user       =   "u_B"       ;
$pasword    =   "u_pas"     ;
$conn   = mysqli_connect($hostname,$user,$pasword,$database) ;
if (!$conn)
{
    die ("Error connecting to the database because : " . 
    mysqli_error($conn))    ;
}

Answer 1

In domain1 config.php file i have written the following code. It's working for me.

$servername   =   "domain2.in"   ;
$database     =   "db_B"         ;//server B's database name
$user         =   "u_B"          ;//server B's database's(db_B) user name
$pasword      =   "u_pas"        ;//server B's database's(db_B) password

$conn   = mysqli_connect($servername,$user,$pasword,$database) ;
if (!$conn)
{
    die ("Error connecting to the database because : " . 
    mysqli_error($conn))    ;
}

after this, add "server A"'s Remote MySQL hostname in "server B"'s Remote MySQL.

如何在不同的服务器上连接数据库？

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