<?php
$pass=$_post["passadmin"];
$username=$_post["usernameadmin"];
$query="select * from admin where Password=$pass and username=$usernameadmin";

$conn=mysql_connect("localhost","root","123");
if(!$conn)
die("cannot connect to database");
$DB=mysql_select_db("school",$conn);
if(!$DB)
die("error");
$res=mysql_query($query,$conn);
if(!$res)
print("not execut query");
else
{
$row=mysql_fetch_array($res);
if(!$row)
print("not found");
else
print(<a href="">);



}