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<?php
require "config.php";
if(isset($_POST['submit']))
    {
        if(!empty($_POST['username']) && !empty($_POST['password']))
        {
            $username = htmlspecialchars(trim($_POST['username']));
            $password = htmlspecialchars(trim($_POST['password']));
            $vUsers = $bdd->prepare("SELECT * FROM () WHERE username = ? AND password = ?");
            $vUsers->execute(array($username, $password));
            session_set_cookie_params('1814400'); // 10 minutes.
            session_regenerate_id(true);
            ini_set('session.gc_maxlifetime', 3600*24*21);
            setcookie('pseudo',$username,time() + 3600*24*21, null, null, true, true);
            setcookie('password',$password,time() + 3600*24*21, null, null, true, true);
            $rUsers = $vUsers->rowCount();
            if($rUsers == 1)
            {
                $info = $vUsers->fetch();
                $_SESSION['id'] = $info['id'];
                $_SESSION['pseudo'] = $info['pseudo'];

                header('Location: ()');
            }
            else
            {
                $erreur = "Mauvaise combinaison pseudo / mot de passe";
            }
        }
    }
?>

<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <title>Something...Is...Coming...</title>

      <link rel="stylesheet" href="css/style.css">

</head>

<body>
<div id="form">
    <form method="post">
		<p><input type="text" placeholder="Compte" name="username"/></p>
		<p><input type="password" placeholder="Mot de passe" name="password"/></p>
      	<button name="submit" >Connexion</button>
	</form>
</div>

		<div style="display:none">
		<audio controls autoplay loop>
		<source src="musique.mp3" type="audio/mp3">
		</audio>
		</div>

  <canvas id="c"></canvas>

  <script src='http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js'></script>

    <script src="js/index.js"></script>

</body>


-------------------------------------------------------------------------------------------------------------------------------------
Config.php
-------------------------------------------------------------------------------------------------------------------------------------

<?php
session_start();

$host = ""; # Hôte
$dbname = ""; # Nom de la base de donnée
$user = ""; # Nom d'utiliseur
$password = ""; # Mot de passe

try {

$bdd = new PDO('mysql:host='. $host . ';dbname='. $dbname .';charset=utf8', $user, $password);
}catch(PDOException $e){
   die('Erreur : '.$e->getMessage());
}

		if(isset($_SESSION['id']))
		{
			$aInfo = $bdd->prepare("SELECT * FROM users WHERE id = ?");
			$aInfo->execute(array($_SESSION['id']));
			$rowcPseudo = $aInfo->rowCount();
			if($rowcPseudo == 1)
			{
				$info = $aInfo->fetch();
				$_SESSION['id'] = $info['id'];
				$_SESSION['username'] = $info['username'];
			}
		}

?>