la je vien de changer ma requete mysql en

<?php

$bdd =  new PDO('mysql:host=localhost;dbname=sogamesm', 'sogamesm', '****');

?>

try
{
    $bdd =  new PDO('mysql:host=localhost;dbname=sogamesm', 'sogamesm', '****');
    $bdd->setAttribute( PDO::ATTR_ERRMODE, PDO::ERRMODE_WARNING );
}
catch(PDOException $e)
{
    exit($e->getMessage());
}

Warning: PDO::exec(): SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ':id, :login, :nom, :prenom, :email, :mdp, :verifmdp)' at line 1 in /home/teamsogames/www/register.php on line 23 Notice: Undefined variable: req in /home/teamsogames/www/register.php on line 24 Fatal error: Call to a member function execute() on a non-object in /home/teamsogames/www/register.php on line 24 

Warning: PDOStatement::execute(): SQLSTATE[HY093]: Invalid parameter number: parameter was not defined in /home/teamsogames/www/register.php on line 31 Warning: PDOStatement::execute(): SQLSTATE[HY093]: Invalid parameter number in /home/teamsogames/www/register.php on line 31 votre 

<?php

// on enregistre le compte du visiteur a mysql.
$req = $bdd->prepare('INSERT INTO register_sogamesm(id, login, nom, prenom, email, mdp) VALUES(:id, :login, :nom, :prenom, :email, :mdp)');
$req->execute(array(
   'login' => $login,
   'nom' => $nom,
   'prenom' => $prenom,
   'email' => $email,
   'mdp' => $mdp,
   ));

echo 'votre compte a bien été enregistré';
?>

oui erreur de ma part désolé mais je vien dans l'enlevé ceci est toujour pareil

<fieldset>
<?php

include_once("include/mysql.php");

$login = $_POST['login'];
$nom = $_POST['nom'];
$prenom = $_POST['prenom'];
$email = $_POST['email'];
$mdp = $_POST['mdp'];
$verifmdp = $_POST['verifmdp'];

// on verifie que les 2 mot de passe sont identique.
if ($mdp != $verifmdp)
{
 echo " <br />erreur : Attention les 2 mot de passe sont diff&eacute;rent";
}

// on enregistre le compte du visiteur a mysql.
$req = $bdd->prepare('INSERT INTO register_sogamesm(id, login, nom, prenom, email, mdp) VALUES(:id, :login, :nom, :prenom, :email, :mdp)');
$req->execute(array(
   'login' => $login,
   'nom' => $nom,
   'prenom' => $prenom,
   'email' => $email,
   'mdp' => $mdp
   ));


echo 'votre compte a bien été enregistré';
?>

Warning: PDOStatement::execute(): SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'login' cannot be null in /home/teamsogames/www/register.php on line 27 votre compte a bien �t� enregistr� 

echo '<pre>' . print_r($_POST, true) . '</pre>';

la j'ai rien je doit faire quoi?