PHP 7.3关于count(), each()的异常解决.

Warning: count(): Parameter must be an array or an object that implements Countable
Deprecated: The each() function is deprecated. This message will be suppressed on further calls

function fun_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;
}

function fun_count($array_or_countable,$mode = COUNT_NORMAL){
    $res = 0;
    if(is_array($array_or_countable) || is_object($array_or_countable)){
        $res = count($array_or_countable, $mode);
    }
    return $res;
}