eXorithm - Execute Algorithm: View / Run Algorithm weather

weather_forecast version 1.4 Display the weather for a location. Look up using the Google weather API.

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Source (PHP)


function weather_forecast ($location, $units, $header_color, $day_header_color, $day_color)

{

  $weather = file_get_contents('http://www.google.com/ig/api?weather='.urlencode($location));

  

  $xml = simplexml_load_string($weather);

  

  if (!isset($xml->weather->forecast_conditions)) {

    throw new Exception('Data could not be retreived for location '.$location);

  }

  

  $location = $xml->weather->forecast_information->city['data'];

                                                      

  // four day outlook

  for ($i = 0; $i < 4; $i++){

    if ($xml->weather->forecast_conditions->$i) {

      $forecast_day[] = $xml->weather->forecast_conditions->$i->day_of_week['data'];

      $forecast_condition[] = $xml->weather->forecast_conditions->$i->condition['data'];

      $low = $xml->weather->forecast_conditions->$i->low['data'];

      if ($units=='k')

        $low = round((($low - 32)*5/9) + 273, 1);

      else if ($units=='c')

        $low = round(($low - 32)*5/9, 1);

      $forecast_low[] = $low;

      $high = $xml->weather->forecast_conditions->$i->high['data'];

      if ($units=='k')

        $high = round((($high - 32)*5/9) + 273, 1);

      else if ($units=='c')

        $high = round(($high - 32)*5/9, 1);

      $forecast_high[] = $high;

      $forecast_icon[] = $xml->weather->forecast_conditions->$i->icon['data'];

    }

  }

  

  // current

  $condition = $xml->weather->current_conditions->condition['data'];

  $temp = $xml->weather->current_conditions->temp_f['data'];

  if ($units=='k')

    $temp = round((($temp - 32)*5/9) + 273, 1);

  else if ($units=='c')

    $temp = round(($temp - 32)*5/9, 1);

  $icon = $xml->weather->current_conditions->icon['data'];

  

  // build the HTML

  $header = "<tr><td colspan=\"".count($forecast_day)."\" bgcolor=\"#$header_color\">";

  if ($icon!='')

    $header .= "<img align=\"left\" src=\"http://www.google.com$icon\">";

  $header .= "<b>$location</b><br>Currently <i>$condition</i> <b>$temp$units</b>";

  $header .= "</td></tr>\n<tr>";

  $data = "<tr>\n";

  

  for ($i = 0; $i < count($forecast_day); $i++){

    $header .= "<td width=\"130\" bgcolor=\"#$day_header_color\"><b>$forecast_day[$i]</b></td>";

    $data .= "<td bgcolor=\"#$day_color\">";

    $data .= "<img src=\"http://www.google.com$forecast_icon[$i]\">";

    $data .= "<br><i>$forecast_condition[$i]</i>";

    $data .= "<br>high <b>$forecast_high[$i]$units</b>";

    $data .= "<br>low <b>$forecast_low[$i]$units</b>";

    $data .= "</td>\n";

  }

  

  $header .= "</tr>";

  $data .= "</tr>";

  

  return "<table cellpadding=\"5\" cellspacing=\"3\">\n$header\n$data\n</table>";

}

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location	=
units	=
header color	=
day header color	=
day color	=