修改 pclzip中方法privExtractFile 代码

if ($p_path != '') {      $p_entry['filename'] = $p_path."/".$p_entry['filename'];            // 获取字符串编码并转为UTF-8      $encode = mb_detect_encoding($p_entry['filename'], array("ASCII",'UTF-8',"GB2312","GBK",'BIG5'));      if($encode != "UTF-8"){        $p_entry['filename'] = mb_convert_encoding($p_entry['filename'], 'UTF-8', 'gb2312');      }    }