php7.2中each()函数被弃用的替换办法

function new_each(&$array){

   $res = array();

   $key = key($array);

   if($key !== null){

       next($array); 

       $res[1] = $res['value'] = $array[$key];

       $res[0] = $res['key'] = $key;

   }else{

       $res = false;

   }

   return $res;

}