PHP CURL如何实现模拟登陆并上传文件操作

","cUrl Error:".curl_error($ch);
  }else{
    return $output;
  }
  //  释放cURL句柄
  curl_close($ch);
}
$temp = array();
$temp['title'] = iconv( "utf-8", "gb2312//IGNORE" , "牛排店加盟");
$temp['ly'] = iconv( "utf-8", "gb2312//IGNORE" , "特色餐饮加盟");
$temp['classid'] = iconv( "utf-8", "gb2312//IGNORE" , "7159");
$temp['newssort'] = iconv( "utf-8", "gb2312//IGNORE" , "1");
$temp['panduan'] = iconv( "utf-8", "gb2312//IGNORE" , "0");
$temp['submit_button'] = iconv( "utf-8", "gb2312//IGNORE" , "发布");
$temp['addr'] = iconv( "utf-8", "gb2312//IGNORE" , "bjcanyin");
$temp['ContentBg'] = "";
$temp['newss'] = iconv( "utf-8", "gb2312//IGNORE" , htmlspecialchars_decode("
阿会计师的贺卡收到框架
", ENT_QUOTES));
$cookie_file = dirname(__FILE__)."/jdzj.tmp";
$sumbit_url = "http://***/news/***.asp";
$http_url="http://***/news/***.asp?act=addok";
$img = curl_form($temp,$http_url,$sumbit_url,$cookie_file);
var_dump($img);