function enregistre($lesChoix){

    $user_datas = array(
        "nom" => $_SESSION['user'][0],
        "prenom" => $_SESSION['user'][1],
        "profession" => $_SESSION['user'][4],
        "ville" => $_SESSION['user'][3],
        "mail" => $_SESSION['user'][2]
    );

    $json = file_get_contents("data/seminaireTest.json");
    $parsed_json = json_decode($json, true);
    echo "<pre><code>";
    var_dump($parsed_json);
    echo "</pre></code>";

    foreach ($lesChoix as $heure => $id) {
        if($heure != "valider"){
            echo "<span style=\"color:blue\">" . $heure . "</span><br>";
            echo "<span style=\"color:blue\">" . $id . "</span><br>";

            for($i = 0; $i < count(donnerLesHeuresCreneaux()); $i++){
                if(donnerLesHeuresCreneaux()[$i]->heure == $heure){
                    for ($j = 0; $j < count(donnerLesHeuresCreneaux()[$i]->conference); $j++) {
                        if(donnerLesHeuresCreneaux()[$i]->conference[$j]->id == $id){

                            array_push($parsed_json->seminaire->creneau[$i]->conference[$j]->id->participants, $user_datas);

                        }
                    }
                }

            }
        }
    }

}