PHP 解析google天气xml文件

下面是使用PHP解析google天气的代码

function fromGoogle($city){
    $city = mb_convert_encoding($city, 'UTF-8', 'gb2312');
    $city = Pinyin($city,1);
    print_r("");
    $content = file_get_contents("");
    $content || die("No such city's data");
    $content = mb_convert_encoding($content, 'UTF-8', 'gb2312');
    $xml = simplexml_load_string($content);
    $date = $xml->weather->forecast_information->forecast_date->attributes();

    $forecastinfo = $xml->weather->forecast_information;
    $cityname = $forecastinfo->city->attributes();
    $postal_code = $forecastinfo->postal_code->attributes();
    $forecast_date = $forecastinfo->forecast_date->attributes();
    $current_date_time = $forecastinfo->current_date_time->attributes();

    $current = $xml->weather->current_conditions;
     $condition = $current->condition->attributes();
     $temp_c = $current->temp_c->attributes();
     $humidity = $current->humidity->attributes();
     $icon = $current->icon->attributes();
     $windMsg = $current->wind_condition->attributes();
     $condition && $condition = $xml->weather->forecast_conditions->condition->attributes();

     $today_info[currentdate] = $forecast_date;
     $today_info[currenttime] = $current_date_time;
     $today_info[cityname] = $postal_code;
     $today_info[humidity] = $humidity;
     $today_info[windMsg] = $windMsg;
     $today_info[condition] = $condition;
     $today_info[tempcur] = $temp_c;
     $i = 0;

     foreach($xml->weather->forecast_conditions as $forecast) {
         $temp = null;
         $temp[low] = $forecast->low->attributes();
         $temp[high] = $forecast->high->attributes();
         $temp[conditionMsg] = $forecast->condition->attributes();
         $temp[day_of_week] = $forecast->day_of_week->attributes();
         $i++;
         if($i == 1){
             $today_info = array_merge($today_info,$temp);
         }else if($i == 2 ){
             $SeconDay_info = array_merge($SeconDay_info,$temp);
         }else if($i == 3 ){
             $ThirdDay_info = array_merge($ThirdDay_info,$temp);
         }else if($i == 4 ){
             $FourthDay_info = array_merge($FourthDay_info,$temp);
         }
     }
     $todayall_info = Array();
     $todayall_info[0] = $today_info;
     $todayall_info[1] = $SeconDay_info;
     $todayall_info[2] = $ThirdDay_info;
     $todayall_info[3] = $FourthDay_info;
     return $todayall_info;
}