rhyley.org: projects / my web tag cloud for url

enter site to get a tag cloud for:

the php source that makes this page run:

<?php

# cached_fopen_url() -- see http://www.php.net/manual/tw/function.fopen.php#49478

require_once '/nfsn/content/oncemore/htdocs/mod/cached.inc';

# xml2array --  see http://viebrock.ca/code/21/php-snippet-xml2array
# php 5+ has built-in xml functions which do more or less the same thing

require_once '/nfsn/content/oncemore/htdocs/mod/xml2array.inc';

$appid = "yahooAPIid";		# Your yahoo API id
$method = "http://api.search.yahoo.com/MyWebService/V1/tagSearch";
$url = $_GET[url];
$script = $_SERVER['PHP_SELF'];

if ($url) {
	$handle = cached_fopen_url("$method?url=$url&appid=$appid&sort=popularity&results=50", "rb");
	$content = '';
	// here you receive content of page
	while(!feof($handle)) {
	 $content .= fread($handle,4096);
	}
	fclose($handle);

$objXML = new xml2Array();
	$arrOutput = $objXML->parse($content);

/*
	echo '<pre>';
	print_r($arrOutput);
	echo '</pre>';
	*/

$tags = array();
	$freqs = array();
	$i = 0;

foreach($arrOutput[0][children] as $thisTag) {
		$tagName = $thisTag[children][0][tagData];
		$tagFreq = $thisTag[children][1][tagData];
		$tags[$i] = $tagName;
		$freqs[$i] = $tagFreq;
		$i++;
	}

array_multisort($tags, $freqs);

echo "<h5>tag cloud for <a href=\"$url\">$url</a>:</h5>\n";

if (count($freqs)) {
		$avgFreq = round( array_sum($freqs) / count($freqs) );
		$i = 0;
		echo "<div>";
		foreach($tags as $thisTag) {
			$tagFreq = round($freqs[$i]/$avgFreq)+10;
			echo "<a title=\"tag used $freqs[$i] times\" href=\"http://myweb2.search.yahoo.com/dg=6&myweb?tag=" . urlencode($thisTag) . "\">";
			echo '<span style="font-size:' . $tagFreq . 'pt">' . $thisTag . "</span></a> \n";
			$i++;
		}
		echo "</div>";

}
	
	else echo "no hits for this url.";

}

else {
	$url = 'http://';
}

echo '<h5>enter site to get a tag cloud for:</h5>';
echo "<form type=\"GET\" action=\"$script\">\n";
echo "<label for=\"url\">url</label> <input id=\"url\" name=\"url\" type=\"text\" size=\"30\" value=\"$url\" onfocus=\"this.select()\">\n";
echo "</form>\n";
?>