$result = json_encode(xxxxxxxx);
{"result":"error","data":"","message":"\u6b64\u5206\u9875\u7684\u7f13\u5b58\u5df2\u8d85\u65f6"}
return preg_replace("#\\u([0-9a-f]{4})#ie", "iconv('UCS-2BE', 'UTF-8', pack('H4', '\1'))", $result);
或者
'message'=>mb_convert_encoding('此分页的缓存已超时', 'HTML-ENTITIES','UTF-8')$result = json_encode(xxxxxxxx);
{"result":"err