批改密码PHP

 session_start();

 header("Content-type:text/html; charset=utf-8");

 include '../config.php';

 if($_SESSION['admin']=='') header('location:index.php');

 $show = "display:none;";

 		$sql = "SELECT * FROM `cp_admin` WHERE `id`='1'";

 		$ret = mysql_query($sql);

 		$row = mysql_fetch_assoc($ret);

 

 if($_POST){

 	$admin = $_POST['admin'];

 	$pass = $_POST['pass'];

 	$pass1 = $_POST['pass1'];

 	$pass2 = $_POST['pass2'];



 	if($row['name']!=$admin && $row['pwd']!=md5($pass) && $pass1!=$pass2){

 		 	echo "";

   	 		}else{

   	 		$pass1=md5($pass1);

 	$sql1 = "UPDATE `cp_admin` SET `name`='{$admin}',`pwd`='$pwd2).', WHERE `id`='1'";

   		mysql_query($sql1);

   		echo "";

   		

 		echo "";

   		$show = "display:block;";

  

 	}

 }

 ?>