PHP连接MySQL应用

一 代码

<?php$host = "127.0.0.1";     //$userName = "root";     //$password = "root";     //if ($connID = mysql_connect($host, $userName, $password)){     //    echo "<script language='javascript'>alert('连接上');</script>";}else{    echo "<script language='javascript'>alert('没连上');</script>";}?>

 

二 运行结果