Automatically Change Background Based on the Weather Snippet Idea

// determine the weather, such as rain or sunny or snow, and store it in a variable

return $weather;

<link rel="stylesheet" type="text/css" href="assets/templates/mytemplate/[!weather!].css" />

<?php
/* get xml, find match */
	
	/* get the weather from Yahoo */
	$data = get_data("http://weather.yahooapis.com/forecastrss?p=CAXX0345&u=f");
	
	$iWeather = format_result(get_match('/<yweather:condition  text="(.*)"/isU',$data));
		
	/* debug to see what we got back */
	//echo '<pre style="background:#fff;font-size:12px;">['; print_r($iWeather); echo ']</pre>';
	
	/* format the result */
	function format_result($input)
	{
		return strtolower(str_replace(array(' ', '(', ')'), array('-', '-', ''), $input));
	}
	
	/* helper:  does regex */  
	function get_match($regex,$content)  
	{  
		preg_match($regex,$content,$matches);  
		return $matches[1];  
	}
	
	/* gets the xml data from Alexa */
	function get_data($url)
	{
		$ch = curl_init();
		$timeout = 5;
		curl_setopt($ch,CURLOPT_URL,$url);
		curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
		curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,$timeout);
		$xml = curl_exec($ch);
		curl_close($ch);
		return $xml;
	}
return $iWeather;
?>

$weatherra =array(0=>'tornado',
1=>'tropical storm',
2=>'hurricane',
3=>'severe thunderstorms',
4=>'thunderstorms',
5=>'mixed rain and snow',
6=>'mixed rain and sleet',
7=>'mixed snow and sleet',
8=>'freezing drizzle',
9=>'drizzle',
10=>'freezing rain',
11=>'showers',
12=>'showers',
13=>'snow flurries',
14=>'light snow showers',
15=>'blowing snow',
16=>'snow',
17=>'hail',
18=>'sleet',
19=>'dust',
20=>'foggy',
21=>'haze',
22=>'smoky',
23=>'blustery',
24=>'windy',
25=>'cold',
26=>'cloudy',
27=>'mostly cloudy (night)',
28=>'mostly cloudy (day)',
29=>'partly cloudy (night)',
30=>'partly cloudy (day)',
31=>'clear (night)',
32=>'sunny',
33=>'fair (night)',
34=>'fair (day)',
35=>'mixed rain and hail',
36=>'hot',
37=>'isolated thunderstorms',
38=>'scattered thunderstorms',
39=>'scattered thunderstorms',
40=>'scattered showers',
41=>'heavy snow',
42=>'scattered snow showers',
43=>'heavy snow',
44=>'partly cloudy',
45=>'thundershowers',
46=>'snow showers',
47=>'isolated thundershowers');

	/* get the weather from Yahoo */
	$data = get_data("http://weather.yahooapis.com/forecastrss?p=USVT0196&u=f");
	
	//$iWeather = format_result(get_match('/<yweather:condition  text="(.*)"/isU',$data));
	$iWeathercode  = format_result(get_match('/  code="(.*)"/isU',$data));
        $iWeather = $weatherra[$iWeathercode];

$iTPL = isset($tpl) ? $tpl : ' ';   

 if ($iTPL==' ')
        $iWoutput = $iWcity.', '.$iWcondition.', '.$iWtemp; 
else
        $iWoutput = $modx->getChunk($iTPL);

return $iWoutput;