public function get_data_member()
 {
     $bdd = new bdd();
     if ($this->idMember == 0) {
         $query = $bdd->query('SELECT * FROM  ' . TABLE_MEMBERS . ' WHERE membre_id = 0');
     } else {
         $query = $bdd->query('SELECT * FROM  ' . TABLE_MEMBERS . ' WHERE membre_id = ?', $this->idMember);
     }
     $fetch = $bdd->fetch($query);
     $this->dataMember = $fetch;
     $this->lang = empty($fetch['membre_lang']) ? DEFAULT_LANG : $fetch['membre_lang'];
     $this->design = empty($fetch['membre_design']) ? DEFAULT_DESIGN : $fetch['membre_design'];
     $this->rank = empty($fetch['membre_rank']) ? RANK_GUEST : $fetch['membre_rank'];
 }