Simple Feedburner Ticker with PHP

<rsp stat="ok">
−
<!--
This information is part of the FeedBurner Awareness API. If you want to hide this information, you may do so via your FeedBurner Account.
-->
−
<feed id="m7ksd6fx8795fdchj9dthc" uri="EdwardAWebb">
<entry date="2009-01-25" circulation="23" hits="219" reach="7"/>
</feed>
</rsp>

<?php
/**
* Feedburner ticker
* written by Edward Webb http://edwardawebb.com January 22 2009
* license :GPL
**/
 //get needed values
			$uri=$_GET['fb_uri'];
 
			//as of current, Awareness API only supports yesterday and back     http://code.google.com/apis/feedburner/awareness_api.html#dates
			$yest= date('Y-m-d',mktime(0, 0, 0, date("m"), date("d")-1,   date("Y")));
			$prev=date('Y-m-d',mktime(0, 0, 0, date("m"), date("d")-2,   date("Y")));
 
			$awApiUrl='https://feedburner.google.com/api/awareness/1.0/GetFeedData?uri='.$uri.'&dates='.$prev.','.$yest.'';
 
			$link='<a href="'.$awApiUrl.'">link</a>';
 
			//Initialize the Curl session
			$curl = curl_init();
 
			//Set curl to return the data instead of printing it to the browser.
			curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
			//Set the URL
			curl_setopt($curl, CURLOPT_URL,  $awApiUrl);
			//Execute the fetch
			$data = curl_exec($curl);
			//Close the connection
			curl_close($curl);
 
			$xml = new SimpleXMLElement($data);
			$prevCount = $xml->feed->entry[0]['circulation'] + 0;
			$yestCount = $xml->feed->entry[1]['circulation'] + 0;
 
			switch(true){
				case ($yestCount == $prevCount):
				$img='<img src="./nochange.gif" />';
			break;
				case ($yestCount < $prevCount):
				$img='<img src="./arrow-down-red.gif" />';
			break;
				case ($yestCount > $prevCount):
				$img='<img src="./arrow-up-green.gif" />';
			break;
			default:
			echo "hmm.. Can't seem to do math on these figures.  Check this ".$link." to make sure it looks like valid xml";
 
			}
			?>
 
			<table>
			<tr>
			<td></td><td style="text-decoration:underline;">Previous</td><td style="text-decoration:underline;">Yesterday</td><td></td>
			</tr>
			<tr>
			<td><?php echo $uri ?></td>
			<td style="font-weight:bold;" align="center"><?php echo $prevCount ?></td>
			<td style="font-weight:bold;" align="center"><?php echo $yestCount ?></td>
			<td align="center"><?php echo $img ?></td>
			</tr>
			</table>

<?php
/**
* Feedburner ticker
* written by Edward Webb http://edwardawebb.com January 22 2009
* license :GPL
**/
        //get needed values
	$uri=$_GET['fb_uri'];
 
	//as of current, Awareness API only supports yesterday and back     http://code.google.com/apis/feedburner/awareness_api.html#dates
	$yest= date('Y-m-d',mktime(0, 0, 0, date("m"), date("d")-1,   date("Y")));
	$prev=date('Y-m-d',mktime(0, 0, 0, date("m"), date("d")-2,   date("Y")));
 
	$awApiUrl='https://feedburner.google.com/api/awareness/1.0/GetFeedData?uri='.$uri.'&dates='.$prev.','.$yest.'';
 
	$link='<a href="'.$awApiUrl.'">click</a>';
 
	//Initialize the Curl session
	$curl = curl_init();
 
	//Set curl to return the data instead of printing it to the browser.
	curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
	//Set the URL
	curl_setopt($curl, CURLOPT_URL,  $awApiUrl);
	//Execute the fetch
	$data = curl_exec($curl);
	//Close the connection
	curl_close($curl);
 
	$xml = new SimpleXMLElement($data);
 
	$dataArr=array();
	$i=0;
	foreach($xml->feed->entry as $feedDay){
 
		$dataArr['Circulation'][$i]=$feedDay['circulation'] + 0;
		$dataArr['Hits'][$i]=$feedDay['hits'] + 0;
		$dataArr['Reach'][$i]=$feedDay['reach'] + 0;
		$i++;
	}
 
		?>
 
	<table align="center" cellpadding="2">
	<tr>
		<td></td><td style="text-decoration:underline;">Previous</td><td style="text-decoration:underline;">Yesterday</td><td></td>
	</tr>
	<?php
		foreach($dataArr as $key=>$value){
			$img='';
			switch(true){
				case($value[0] == $value[1]):
				$img='<img src="./plugins/Feedburner/nochange.gif" alt="--"/>';
				break;
				case($value[0] < $value[1]):
				$img='<img src="./plugins/Feedburner/arrow-up-green.gif" alt="^"/>';
				break;
				case($value[0] > $value[1]):
				$img='<img src="./plugins/Feedburner/arrow-down-red.gif" alt="v"/>';
				break;
			}
			echo '<tr>';
			echo '<td style="font-weight:bold;">'.$key.'</td>';
			echo '<td style="text-align:center;">'.$value[0].'</td>';
			echo '<td style="text-align:center;">'.$value[1].'</td>';
			echo '<td style="text-align:center;">'.$img.'</td>';
			echo '</tr>';
		}
	?>
 
	</table>