tagcloud.php

<style type="text/css">

.tag_cloud { padding: 3px; text-decoration: none; }
.tag_cloud:link { color: #930; }
.tag_cloud:visited { color: #430; }
.tag_cloud:hover
{

border-width:1px;
border-style:solid;
border-color: #930;
text-decoration:none;
background:#fff;

}
.tag_cloud:active
{

color: #ffffff;
background: #ACFC65;

}

</style>
<?php
// Function get_tag_data modified for use on southrustern.com
// Function sub_dir created solely for use on southrustern.com
//
// The functions walk a directory structure like:
//
// info/AZ/tucson/img
// info/AZ/dolan_springs/img
// info/CA/inyokern/img
//
// and count the images found in each. They return an array
// of directory (key) => num (value) pairs.
//
// How the code would respond on a different directory structure
// is unknown.
//
// As usual, I accept no responsibility for your use of this code.
// If it results in your computer becoming a writhing pit of viruses
// or a smoking lump of charred silicon, youre on your own.
//
// Mike Martinet <mmrtnt eachat southrustern daught com>
// Return an array of city_state keys with image count values
function get_tag_data() {

$count = array();
$results = array();
foreach( array( 'AZ', 'CA', 'NV' ) as $dir ) {

$count = &sub_dir( "info/".$dir, &$count );
foreach ( $count as $key=>$num ) {

// EXAMPLE:
// key: info/CA/inyokern/img
// num: 1
$state = substr( $key, 5, 2 );
$city = preg_replace( '/info\/(.{3})(.*)\/.*/', '$2', $key );

// Skip the zipcode symlinks
if( preg_replace( '/\d{5}/', '', $city ) ) {

$city = $city."_".strtolower( $state );
$results[ $city ] = $num;

}

}

}
return( $results );

}
// Recurse looking for img directories
// and return count of files found within
function sub_dir( $indir, $count ) {

$idx = 0;
// In short, the code starts off trying to open $indir
// It looks at files until it finds one titled 'img'
// When it finds img, it sets the current path as a key
// in the count array and sets the value to 0.
// If it already is in the img directory, it counts the files
// and updates the value of the current key
if( is_dir( $indir ) ) {

if( $dh = opendir( $indir ) ) {

while( ( $file = readdir( $dh ) ) !== false ) {

if( ( $file != "." ) && ( $file != ".." ) ) {

if( stripos( $indir, "img" ) ) {

$count[ $indir ] = ++$idx;

}
$nextdir = $indir."/".$file;
if( $file == "img" ) {

$count[ $nextdir ] = 0;

}
if( is_dir ( $nextdir) ) {

sub_dir( $nextdir, &$count);

}

}

}

}

}
return( $count );

}
function get_tag_cloud() {

// First off we define the min and max font sizes.

// Default font sizes
$min_font_size = 12;
$max_font_size = 30;

// Call our "get_tag_data" function to retrieve an array of tags.

// Pull in tag data
$tags = get_tag_data();

// We pull out the minimum and maximum count from our tags.
// Creating a spread to be used in our font size calculations.
// Check to see if we have a good spread, if not, set to one.

$minimum_count = min(array_values($tags));
$maximum_count = max(array_values($tags));
$spread = $maximum_count - $minimum_count;

if($spread == 0) {

$spread = 1;

}

// Build the HTML and return the HTML code.

$cloud_html = '';
$cloud_tags = array(); // create an array to hold tag code
foreach ($tags as $tag => $count) {

// Remove the state append
$tagsub = substr( $tag, 0, -3 );
$size = $min_font_size + ($count - $minimum_count)

* ($max_font_size - $min_font_size) / $spread;

$cloud_tags[] = '<a style="font-size: '. floor($size) . 'px'

. '" class="tag_cloud" href="/node/88&info=' . $tag
. '" title="' . $tagsub. ' : ' . $count . '">'
. htmlspecialchars(stripslashes($tagsub)) . '</a>';

}
$cloud_html = join("\n", $cloud_tags) . "\n";
return $cloud_html;

}
// Here is some example HTML to call this tag builder.
?>
<div id="wrapper"
<?php

print get_tag_cloud();
print "<br style=\"font-size:12px\">Tag Cloud by <a href=\"http://scriptplayground.com/tutorials/php/Tag-Cloud/\">Script Playground</a>";

?>
</div>