TechnoTag: technotag.php

<?php
/*
Plugin Name: TechnoTag
Plugin URI: http://www.gudlyf.com/archives/2005/01/14/wordpress-plugin-technotag/
Description: Allows <a href="http://www.technorati.com/help/tags.html">Technorati tags</a> within &lt;tag&gt; &lt;/tag&gt;.  Use &lt;tag word="tag word"&gt; to use a different tag word than what's between the tags.  Will also allow adding 'ttag' custom values for the post for listing at the end of each post.
        Also uses all tags that are in the taglist custom field which are seperated by commas or spaces
Version: 1.2
Author: Keith McDuffee
Author URI: http://www.gudlyf.com

Modified by: William Spaetzel
Modifier URL: http://www.redune.com
*/ 

function technotag($text) {


        $image = get_settings('siteurl') . '/wp-content/plugins/technobubble.gif';

        $link = "http://www.technorati.com/tag/";
        $text = preg_replace('/<ttag word="(.*?)">(.*?)<\/ttag>/i','<a href="' . $link . '$1" rel="tag">$2<img border="0" src="' . $image . '" /></a>',$text);
        $text = preg_replace('/<ttag>(.*?)<\/ttag>/i','<a href="' . $link . '$1" rel="tag">$1<img border="0" alt="Technorati Tag" src="' . $image . '" /></a>',$text);

        $taglist = get_post_custom_values('taglist');

        $ttags = preg_split("/[\s,]+/", $taglist[0]);

        $ttagvals = get_post_custom_values('ttag');

        $ttags = array_merge($ttags, $ttagvals);

        $ttags_list = '';

        
        if(!empty($ttags)) {

                $ttags_list = '<span class="ttag">';
                $ttags_list = $ttags_list . '<img src=' . $image . ' alt="Technorati Tags" /> ';

                foreach ($ttags as $ttag) {
                        $ttags_list = $ttags_list . '<a href="' . $link . $ttag . '" rel="tag">'.$ttag.'</a>';
                        $ttags_list = $ttags_list . '&nbsp;&nbsp';
                }
        
                $ttags_list = $ttags_list . '</span>';
        }

        $text = $text . $ttags_list;

        return $text;
}

add_filter('the_content', 'technotag');
add_filter('comment_text', 'technotag');

?>