<ul>
<?php
$arr = wp_tag_cloud(array(
'smallest' => 8, // font size for the least used tag
'largest' => 40, // font size for the most used tag
'unit' => 'px', // font sizing choice (pt, em, px, etc)
'number' => 200, // maximum number of tags to show
'format' => 'array', // flat, list, or array. flat = spaces between; list = in li tags; array = does not echo results, returns array
'separator' => '', //
'orderby' => 'name', // name = alphabetical by name; count = by popularity
'order' => 'RAND', // starting from A, or starting from highest count
'exclude' => '', // ID's of tags to exclude, displays all except these
'include' => '', // ID's of tags to include, displays none except these
'link' => 'view', // view = links to tag view; edit = link to edit tag
'taxonomy' => 'post_tag', // post_tag, link_category, category - create tag clouds of any of these things
'echo' => true // set to false to return an array, not echo it
));
foreach ($arr as $value) {
$ptr1 = strpos($value,'font-size:');
$ptr2 = strpos($value,'px');
$px = round(substr($value,$ptr1+10,$ptr2-$ptr1-10));
$value = substr($value, 0, $ptr1+10) . $px . substr($value, $ptr2);
$ptr1 = strpos($value, "class=");
$value = substr($value, 0, $ptr1+7) . 'color-' . $px . ' ' . substr($value, $ptr1+7);
echo '<li>' . $value . '</li> ';
}
?>
</ul>