php连接远程mysql数据库实例

<?php 
$con = mysql_connect("localhost","peter","abc123"); 
if (!$con) 
{ 
  die(&#39;Could not connect: &#39; . mysql_error()); 
} 
 
// some code

$conn=mysql_connect('150.125.221.25','root','123'); 
if(!$conn) echo "失败!"; 
else echo "成功!"; 
 //开源代码phprm.com 
 // 从表中提取信息的sql语句 
$sql="SELECT * FROM user where userName='$user_name'"; 
// 执行sql查询 
$result=mysql_db_query('info', $sql, $conn); 
// 获取查询结果 
$row=mysql_fetch_row($result); 
 mysql_close();