public function valUser($item){
    $query = "select * from usuarios where usuario = ? and password = ?";
    $res = $this->bd->Execute($query, [$item[0],$item[1]]);
    if (strcmp($res->status,"ok_query_success")==0){
        $valor = $this->estado["success"]=$res->data;
        print_r($valor);
        if (condition) {
            $this->estado["status"]="ok_log_in";
        }else if(condition){
            $this->estado["status"]="err_log_in";
        }

        //$this->estado["success"]=$res->data;
        //$this->getEstado();
    }
}