php连接多数据库

<?php

$conn1=mysql_connect('localhost','root','','new_link ');

$conn2=mysql_connect('localhost','root','','new_link ');

mysql_select_db('111',$conn1);

mysql_select_db('test',$conn2);

$sql1="select * from g4_member";

$sql2="select * from subject";

$rest1=mysql_query($sql1,$conn1);

$rest2=mysql_query($sql2,$conn2);

$num=mysql_fetch_array($rest1);

$Row=mysql_fetch_array($rest2);

print_r($Row);

echo("<br><br><br>");

print_r($num);

?>