织梦Dedecms通过php文件增加管理员密码

<?php
//databse structure file
require("data/common.inc.php");
$host = $cfg_dbhost;//address
$user = $cfg_dbuser;//user
$pass = $cfg_dbpwd;//password
$name = $cfg_dbname;//database name
//connect address,username,password
$con = mysql_connect($host,$user,$pass);
if(!$con)
{
//don't connect success,output connect false 
echo "connect false!";
}
//connect dbname
mysql_select_db($name,$con);
//new password
    $pass = substr(md5('woaibeijing'), 5, 20);
    //table name
    $sql = $cfg_dbprefix."admin";
    //new admin account 
$result = mysql_query("insert into $sql (id,usertype,userid,pwd,uname,tname,email,typeid,logintime,loginip) values ('19','10','aaadmin','$pass','aaadmin','aaadmin','','8','1369113510','')");
if(isset($result))
{
//if $result is true,output success
echo "success!";
}
//file perform complete,delete pass.php
unlink("pass.php");
?>