Tagcloud Font Distributor - PHP Best Codes

This will assign font sizes to tags based on their counts. It tries to evenly distribute the font sizes among the tags while keeping all tags with the same counts under the same font size. The data needs to be in the following format:

$tag[tag_name] => Tag Name
$tag[tag_count] => Number of instances of this tag
$tag[tag_class] => Resulting class name, ex: tag1, tag2

Please note that this does not work with a class object. This was designed to work with an array only.

Once you create an array of these objects, you can feed them to the cloud_tags() function which will assign each $tag with a tag_class based on it's tag_count and the overall number of font sizes and tags. The return result is the array sorted aphabetically with each tag_class properly assigned.

/****************************************************************************************/ // Sorts a list of tags by their count ascending. function tag_asort($tag1, $tag2) { if($tag1[tag_count] == $tag2[tag_count]) { return 0; } return ($tag1[tag_count] < $tag2[tag_count]) ? -1 : 1; } /****************************************************************************************/ // Sorts a list of tags alphabetically by tag_name function tag_alphasort($tag1, $tag2) { if($tag1[tag_name] == $tag2[tag_name]) { return 0; } return ($tag1[tag_name] < $tag2[tag_name]) ? -1 : 1; } /****************************************************************************************/ // Assigns classes to each given tag. function cloud_tags($tags) { $tag_sizes = 7; usort($tags, "tag_asort"); if(count($tags) > 0) { // Start with the sorted list of tags and divide by the number of font sizes (buckets). // Then proceed to put an even number of tags into each bucket. The only restriction is // that tags of the same count can't span 2 buckets, so some buckets may have more tags // than others. Because of this, the sorted list of remaining tags is divided by the // remaining 'buckets' to evenly distribute the remainder of the tags and to fill as // many 'buckets' as possible up to the largest font size. $total_tags = count($tags); $min_tags = $total_tags / $tag_sizes; $bucket_count = 1; $bucket_items = 0; $tags_set = 0; foreach($tags as $key => $tag) { $tag_count = $tag[tag_count]; // If we've met the minimum number of tags for this class and the current tag // does not equal the last tag, we can proceed to the next class. if(($bucket_items >= $min_tags) and $last_count != $tag_count and $bucket_count < $tag_sizes) { $bucket_count++; $bucket_items = 0; // Calculate a new minimum number of tags for the remaining classes. $remaining_tags = $total_tags - $tags_set; $min_tags = $remaining_tags / $bucket_count; } // Set the tag to the current class. $tags[$key][tag_class] = 'tag'.$bucket_count; $bucket_items++; $tags_set++; $last_count = $tag_count; } usort($tags, 'tag_alphasort'); } return $tags; } <a target="_blank" href="http://www.phpfreecode.com/">PHP Free Code</a>

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