$connection->prepare_query($sql_pquery);
$connection->prepared_query_bind_param("sssisisi", array($form_name, $form_firstname, $form_email, $form_numstreet, $form_street, $form_postalcode, $form_city, $client_id));
$connection->run_prepared_query();
$connection->prepare_query($sql_pquery);
$connection->prepared_query_bind_param("sssisisi", array($form_name, $form_firstname, $form_email, $form_numstreet, $form_street, $form_postalcode, $form_city, $client_id));
$connection->run_prepared_query();