问题1

    foreach($results as $kkk => &$vvvv){
        uksort($vvvv,array($this,'re'));

    }

 $aa = $results;

    
  
    foreach($bt as $k => $v){
        $bt[$k] = mb_convert_encoding($v, "utf-8", 'gb2312'); 
    }
  
    foreach($aa as $k1 => $v1){
         print_r($v1);
        show($aa);
            
        
        foreach($v1 as $k2 => $v2){
            $result[$k1][$k2]= mb_convert_encoding($v2, "utf-8", 'gb2312');
        }
    }