weather.inc.php

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<?
/*************************************************
*
*   Geocode PHP Class - Access Yahoo API.
*   Copyright 2006 Zach Smith
*   http://hoeken.ubersonic.org
*   License: GPL
*
*************************************************/

class YahooWeather extends REST
{
    public function __construct()
    {
        //heres our base.
        $base = 'http://xml.weather.yahoo.com/forecastrss';
    
        //set up our rest action
        parent::__construct($base);
    }

    public function search($location, $units = 'f', $parse = true)
    {
        $data = $this->request(array(
            'p' => $location,
            'u' => $units
        ));

        //do we parse it?
        if ($parse)
            return $this->parseData($data);
        else
            return $data;
    }

    protected function parseData($data)
    {
        //inits!
        $rval = array();

        //load our xml.
        $xml = simplexml_load_string($data);
    
        //get our html..
        $rval['html'] = (string)$xml->channel->item->description;
        $rval['link'] = (string)$xml->channel->link;
    
        //yahoo namespaces... barf.
        foreach ($xml->channel->children('http://xml.weather.yahoo.com/ns/rss/1.0') AS $entry)
        {
            //location?
            if ($entry->getName() == 'location')
            {
                foreach ($entry->attributes() AS $att)
                {
                    if ($att->getName() == 'city')
                        $rval['city'] = (string)$att;
                    else if ($att->getName() == 'region')
                        $rval['state'] = (string)$att;
                }
            }
        }
        
        //now we want to get current conditions
        $day = 'today';
        foreach ($xml->channel->item->children('http://xml.weather.yahoo.com/ns/rss/1.0') AS $entry)
        {
            //parse out each of our days.
            if ($entry->getName() == 'condition')
                $rval['now'] = $this->parseDay($entry);
            else if ($entry->getName() == 'forecast' && $day == 'today')
            {
                $rval['today'] = $this->parseDay($entry);
                $day = 'tomorrow';
            }
            else if ($entry->getName() == 'forecast')
                $rval['tomorrow'] = $this->parseDay($entry);
        }

        return $rval;
    }

    protected function parseDay($day)
    {
        $rval = array();

        //go thru the attributes and get the day.
        foreach ($day->attributes() AS $att)
        {
            if ($att->getName() == 'code')
            {
                $rval['code'] = (string)$att;
                $rval['image'] = "http://us.i1.yimg.com/us.yimg.com/i/us/we/52/$rval[code].gif";
            }
            else if ($att->getName() == 'text')
                $rval['condition'] = (string)$att;
            else if ($att->getName() == 'day')
                $rval['day'] = (string)$att;
            else if ($att->getName() == 'temp')
                $rval['temp'] = (string)$att;
            else if ($att->getName() == 'high')
                $rval['high'] = (string)$att;
            else if ($att->getName() == 'low')
                $rval['low'] = (string)$att;
        }

        if ($day->getName() == 'condition')
            $rval['day'] = 'Now';

        return $rval;
    }
}
?>

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