Tutorial City

<?php

    include_once('config.php');

    if(isset($_POST['submit'])){

        $nome  = $_POST['nome'];
        $email = $_POST['email'];
        $id    = $_POST['id'];

        $sql  = ' UPDATE usuario SET nome = ? , email = ? WHERE id = ? ';

        try {
            $query = $bd->prepare($sql);
            $query->execute(Array($nome,$email,$id));
        } catch (PDOException $e) {
            echo $e->getMessage();
        }
    }

?>

<!DOCTYPE HTML>
<html lang="en-US">
<head>
    <title>Update</title>
    <meta charset="UTF-8">
</head>
<body>
    <h1>Update</h1>

    <form action="<?php echo $_SERVER['PHP_SELF'];?>" method="post">

        <div><label for="nome">Nome</label><input type="text" name="nome" value="eduardo" /></div>
        <div><label for="email">Email</label><input type="text" name="email" value="eduardo.matos@tutorial-city.net" /></div>
        <input type="hidden" name="id" value="1" />
        <input type="submit" value="Atualizar" name="submit" />
    </form>

</body>
</html>