Untitled

<?php

include_once("conn.php");

$errors = 0;
$salt1  = "#()837DjdsKDF3$";
$salt2 = "dJ38/3d872j";

if(isset($_POST['joina']))
{
  $user  = mysql_real_escape_string($_POST["username"]);
  $pass1 = mysql_real_escape_string($_POST["password1"]);
  $pass2 = mysql_real_escape_string($_POST["password2"]);
  $user  =  htmlentities($user); //Anti <h1>Buggad lay</div></div>

  if($pass1 != $pass2) {
    $E_difPass = "Olika lösenord";
    $errors++;
  }
  if(empty($user)) {
    $E_e_user = "Fyll i ett användarnamn";
    $errors++;
  }
  if(empty($pass1)) {
    $E_e_pass1 = "Fyll i ett lösenord";
    $errors++;
  }
  if(empty($pass2)) {
    $E_e_pass2 = "Repetera lösenordet";
    $errors++;
  }

  if($errors == 0)
  {
    $sqlChekUser = "SELECT username FROM users WHERE username = '$user'";
    $resChekUser = mysql_query($sqlChekUser);
    $chekUser    = mysql_num_rows($resChekUser);

    if($chekUser == 0) //Ok
    {
      $pass = md5($salt1 . $pass1 . $salt2);
      $sqlInsUser = "INSERT INTO users (username, password) VALUES ('$user','$pass')";
      $resInsUser = mysql_query($sqlInsUser);

      echo "Du är nu registrerad och kan logga in.";
      echo '<html><head><meta http-equiv="refresh" content="1;url=login.php"></head></html>';
      exit('Du vidarbefodras just nu. Om inte klicka <a href="login.php">här</a>');

    }
    else
    {
      $E_e_mail  = "Användarnamnet var uptaget";
    }
  }

}

//Outout
echo '


<form method="post" action="" name="registrera">
  <table border="0">
    <tr>
      <td>
        Användarnamn:
      </td>
      <td>
       <input type="text" name="username">
    </tr>
    <tr>
      <td>
        Lösenord:
      </td>
      <td>
       <input type="password" name="password1">
    </tr>
    <tr>
      <td>
        Repetera lösen:
      </td>
      <td>
       <input type="password" name="password2">
    </tr>
    <tr>
      <td>
        <input type="submit" name="joina" value="Registrera dig">
  </table>
</form>';
?>