Untitled

<?php require_once('inc/db.php'); ?>
<?php
echo "<h1>S'inscrire</h1>";
if (isset($_POST['submit'])) {
$username = htmlspecialchars(trim($_POST['username']));
$password = htmlspecialchars(trim($_POST['password']));
$repeatpassword = htmlspecialchars(trim($_POST['repeatpassword']));
if ($username&&$password&&$repeatpassword) {
 if ($password==$repeatpassword) {
  if (strlen($password)>4) {

   # code...
  }else { echo "Mot de passe trop faible"; }
  $password = md5($password);
  $repeatpassword = md5($repeatpassword);
  mysql_connect('localhost','root','root');
  mysql_select_db(strbdd);

  $reg = mysql_query("INSERT INTO users VALUES('','$username','$password','repeatpassword')");
  die('Inscription terminé');
  # code...
 } else { echo "Les mots de passe ne sont pas identiques"; }
} else { echo "Veuillez saisir tout les champs"; }
}
?>

<!DOCTYPE html>
<html>
<head>
 <title>Inscription - Stressing-Network</title>
</head>
<body>
<form method="POST" action="register.php">
 <p>Votre nom d'utilisateur:</p>
 <input type="text" name="username">
 <p>mot de passe:</p>
 <input type="password" name="password">
 <p>répéter votre mot de passe:</p>
 <input type="password" name="repeatpassword"><br/><br/>
 <input type="submit" name="submit" value="valider">


</form>
</body>
</html>