--- /dev/null
+<?php
+ require 'db.inc';
+
+ $mnumber = $_POST['mnumber'];
+ $password = $_POST['password'];
+
+ if($db->query("SELECT COUNT(*) FROM students WHERE mnumber = $mnumber")->fetch(PDO::FETCH_NUM)[0] == 0) {
+ print '<table bgcolor="red">';
+ print '<tr><th><b><font color="white">Mat.nummer not found</font></b></th><tr>';
+ print '</table>';
+ print "Mat.Nummer was not found. You have to register first!";
+ break;
+ }
+
+ if($db->query("SELECT COUNT(*) FROM students WHERE mnumber = $mnumber AND password = \"$password\"")->fetch(PDO::FETCH_NUM)[0] == 0) {
+ print '<table bgcolor="red">';
+ print '<tr><th><b><font color="white">wrong password</font></b></th><tr>';
+ print '</table>';
+ break;
+ }
+
+?>
\ No newline at end of file