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How to make a simple "Invalid name or Password?


N0L1m1t5

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I'm taking a big GUESS  8)

<?php
     $check = mysql_query("select*from database where username = '$username' AND password = '$password'") or die(mysql_error());
     while($confirm = mysql_fetch_array($check))
      {
         if($username != $confirm['username'] && $password != $confirm['password'])
              {
                  echo "wow you don't even know your own username and password? go hurt yourself!!!";
               }
         else 
             {
                 header("Location: welcome.php")// redirect after successful longin
              }
       }
?>

the $username is the variable assigned username input by user

the $password is the vaiable assigned to password input by user

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