PHP mysqli连接到远程数据库

Question

尝试连接到与我的网站不在同一主机上的数据库，并且没有太多的运气。该数据库是一个GoDaddy的主机上，我已将其配置为允许远程访问：

$dbc = mysqli_connect($db_host,$db_user,$db_pass,$db_name); 

if (!$dbc) { 
    die('Connect Error: ' . mysqli_connect_error()); 
} 

，我得到页以下几点：

Warning: mysqli_connect() [function.mysqli-connect]: [2002] Connection timed out (trying to connect via ‘mydbhostname:3306) in ‘path’ on line 3

Warning: mysqli_connect() [function.mysqli-connect]: (HY000/2002): Connection timed out in ‘path’ on line 3

Connect Error: Connection timed out

什么我需要找我到底什么在可能导致这种情况的脚本中？

编辑：它似乎一切正常，当我使用MySQL，但不是mysqli ...和mysqli在服务器上启用。

Answer 1

确保您已插入正确的主机名的数据库，在这里你可以看到如何做到这一点的godaddy的主机：

• http://support.godaddy.com/help/article/4978/connecting-remotely-to-shared-hosting-databases
• http://support.godaddy.com/help/article/39/locating-your-databases-host-name?locale=en

Answer 2

我不明白mysqli和mysql之间的区别，但我在GoDaddy上发现使用：

mysqli_connect不起作用。 mysql_connect可以工作。

尝试使用下面的示例代码，看看你是否可以连接到数据库，在至少一个表需要的数据：

<?php 
//Variables for connecting to your database. 
//These variable values come from your hosting account. 
$hostname = "XXXXXXX.db.XXXXXXXX.hostedresource.com"; 
$username = "XXXXXXX"; 
$dbname = "XXXXXXX"; 

//These variable values need to be changed by you before deploying 
$password = "XXXXXXX"; 
$usertable = "XXXXXXX"; 
$yourfield = "XXXXXXX"; 

//Connecting to your database 
mysql_connect($hostname, $username, $password) OR DIE ("Unable to 
connect to database! Please try again later."); 
mysql_select_db($dbname); 

//Fetching from your database table. 
$query = "SELECT * FROM $usertable"; 
$result = mysql_query($query); 

if ($result) { 
    while($row = mysql_fetch_array($result)) { 
     $name = $row["$yourfield"]; 
     echo "<h2>some data</h2>"; 
     echo "$name<br>"; 
    } 
} 
?>