Wordpress plugin error :(

[3xtra]

This cool plugin for wordpress, that suggest you tags when yo creating or editing posts. But plugin can`t work with russian and polish characters. when plugin suggest me related tags for posts - they looks like � and etc. How to change or rewrite it for supporting non-english characters.

I try, but i have no idea..

Please Help Me.

  //  Plugin Name: Thoth's Suggested Tags
   // Plugin URI: http://wiki.github.com/edlab/Thoth-Suggested-Tags/
   // Description: Recommends tags in a tag cloud based on post content as well as any  existing tags in the database.
  //  Version: 1.3
   // Author: Jimmy O'Higgins


 //TODO
 //Citations

if(is_dir(WPMU_PLUGIN_DIR . '/thoth-suggested-tags'))
define('THOTH_INCLUDES', WPMU_PLUGIN_URL . '/thoth-suggested-tags');
else
define('THOTH_INCLUDES', WP_PLUGIN_URL . '/thoth-suggested-tags');

//These words cannot be at the beginning or end of any tags
$stop_words = str_replace(",", " ", " a,&amp,after,almost,also,am,among,an,and,any,are,aren't,as,at,be,because,between,been,began,both,but,by,can,cannot,could,dear,did,do,does,doesn't,don't,either,else,ever,every,for,from,gave,get,got,had,has,have,he,her,here,hers,him,his,how,however,i,if,in,into,instead,is,it,its,it's,least,let,like,likely,many,may,me,might,most,more,must,my,neither,nor,of,off,often,on,only,or,other,our,own,rather,really,said,say,says,shall,she,should,since,so,some,take,than,that,the,their,them,then,there,there's,these,they,this,tis,to,too,twas,us,wants,was,we,were,what,when,where,which,while,who,whom,why,will,with,would,yet,you,you'll,your,those ");

//These words cannot be tags by themselves
$single_words = $stop_words . "i ii iii iv v one two three four five six seven eight nine ten long short up down left right great far near stand eyes hand years time box just no yes big little large small asked placed put happens happen another without someone anything something sometimes enough think much around things type still via over same side new old see call using won lost not case look provide way subject come behind before below above point together longer shorter aboard about above absent across after against along alongside amid amidst among amongst as aside astride at athwart atop barring before behind below beneath beside besides between betwixt beyond but by circa concerning despite down during except excluding failing following for from given in including inside into like mid midst minus near next notwithstanding of off on onto opposite out outside over pace past per plus pro qua regarding round save since than through thru throughout till times to toward towards under underneath unlike until up upon versus via with within without worth ";

function add_box()
{
add_meta_box('boxid',
             'Suggested Tags',
             'box_routine',
             'post',
             'side',
             'low');
}

function box_routine()
{//Generates a tag cloud from tag list

$limit = 22;
$tags_post = tag_list_generate_post();
$tags_db = tag_list_generate_db();
$tags_attach = tag_list_generate_attach();

//No tags from post
if(empty($tags_post))
{
    echo "Click 'Save Draft' to refresh tag suggestions.";
    return;
}

$tags_rec = $tags_post;

//Merge with attachment tag recommendations
if(!empty($tags_attach))
{
    $tags_rec = array_merge($tags_rec, $tags_attach);
}


foreach($tags_rec as $tag_name => &$tag_strength)
{
    if(is_array($tags_db)
        && !empty($tags_db)
        && array_key_exists($tag_name, $tags_db))
    {//If tag exists in database, double its strength and add its database count.
        $tag_strength *= 2;
        $tag_strength += $tags_db[$tag_name];
    }
    if($tag_strength < 2)
    {//Discard weak tags
        unset($tags_rec[$tag_name]);
    }
}
arsort($tags_rec);
array_splice($tags_rec, $limit);

//TAG CLOUD
//Init tag cloud variables
$min_size = 10;
$max_size = 24;

$minimum_strength = min(array_values($tags_rec));
$maximum_strength = max(array_values($tags_rec));

$spread = $maximum_strength - $minimum_strength;
if($spread == 0) $spread = 1;

$step = ($max_size - $min_size)/($spread);

//Print tag cloud
foreach($tags_rec as $tag_name => $tag_strength)
{
    $size = $min_size + ($tag_strength - $minimum_strength) * $step;

    if(array_key_exists($tag_name, $tags_db))
    {//Add asterisk to specify database suggestion
        $new_name = $tag_name . '*';
?>

        <a href="#" style="font-size: <?php echo "$size"?>pt;" onClick="tag_add('<?php echo $tag_name; ?>');return false;"><?php echo "$new_name"?></a>

<?php
    }
    else
    {//No match in database, render tag as is
?>

        <a href="#" style="font-size: <?php echo "$size"?>pt;" onClick="tag_add('<?php echo $tag_name; ?>');return false;"><?php echo "$tag_name"?></a>

<?php
    }
    //Space between tags
    echo "&nbsp&nbsp&nbsp";
}
}

function tag_list_generate_db()
{//Generates recommended tags from existing tags in the database
global $post, $stop_words;

//Get tags from database
$tags = get_terms('post_tag', "get=all");
$tags_rec = array();

//Convert $tags = array(tag structs) into $tags_rec = array($tag_name => $tag_strength)
foreach($tags as $tag_object)
{
    $name = trim($tag_object->name);
    $strength = $tag_object->count;
    $tags_rec[$name] = $strength;
}
arsort($tags_rec);

if($tags_rec)
{//Initialize post content
    $content = $post->post_title;
    $content .=  " ".$post->post_content;
    $content = strip_tags($content);
    $content = strtolower($content);
    $content = preg_replace('/[",.;]/', '', $content);
    $content = preg_replace('/[–-—]/', ' ', $content);
    $content_exploded = explode(" ", $content);
    $content_stemmed = array();

    //Explode db tags so that they match with partials in the post
    foreach($tags_rec as $tag_name => $tag_strength)
    {
        if(str_word_count($tag_name) > 1)
        {
            $exploded = explode(" ", $tag_name);
            foreach($exploded as $word)
            {
                if(!stristr($stop_words, $word))
                {
                    $pluralized = $word . 's';
                    $tags_rec[$word] = 0;
                    $tags_rec[$pluralized] = 0;
                }
            }
        }
    }

    //Evaluate tags
    foreach($tags_rec as $tag_name => $tag_strength)
    {
        //Match tags to post content
        if(!stristr($content, $tag_name))
        {
            unset($tags_rec[$tag_name]);
        }
    }

    //Return only the matches
    return $tags_rec;
}
}

/*
The main loop in this function is based on a simple genetic sequencing algorithm used to find "k-mers", recurring base patterns of length k in a DNA sequence (e.g. AATG). Just as biologists want find every possible k-mer in a gene and count its frequency, we want to find every phrase in the post and its frequency, using "words" and "content" analogously to the biologists' "base pair" and "gene". Google "k-mer counting" if you're curious.
*/
function tag_list_generate_post()
{
global $post, $stop_words, $single_words;

$phrase_length_max = 4;
$phrases = array();

//Initialize post content
$content = $post->post_title;
$content .=  " ".$post->post_content;
$content = strip_tags($content);
$content = preg_replace('/[\/"“”]/', '', $content);
$content = preg_replace('/[–-—]/', ' ', $content);

//Split the content at these symbols, which delimit possible tags
$content_split = preg_split('/[–().,!?—;:…\n]/', $content);

//Begin k-mer loop
foreach($content_split as $section)
{
    $content_exploded = explode(" ", $section);

    for($phrase_length = 1; $phrase_length < $phrase_length_max; $phrase_length++)
    {
        for($phrase_start = 0; $phrase_start < count($content_exploded); $phrase_start++)
        {
            $phrase = '';
            for($word = 0; $word < $phrase_length; $word++)
            {//Build phrase
                $position = $phrase_start+$word;
                if(array_key_exists($position, $content_exploded))
                {
                    $phrase .= $content_exploded[$position]." ";
                }
            }
            $phrase = trim($phrase);
            //Phrase built


            if((str_word_count($phrase) == $phrase_length))
            {//Evaluate phrase
                $phrase_exploded = explode(" ", $phrase);
                $first_word = trim($phrase_exploded[0]);
                $count = count($phrase_exploded);
                $last_word = trim($phrase_exploded[$count-1]);

                $phrase = implode(" ", $phrase_exploded);
                $phrase = trim($phrase);

                //Phrase cannot be empty
                if(!empty($phrase_exploded))
                {
                    //Phrase length = 1
                    if($count == 1 && !stristr($single_words, $phrase))
                    {//Check against "single words" list
                        $phrases[] = $phrase;
                    }
                    //Phrase length = 2
                    else if($count == 2
                            && !stristr($stop_words, $first_word)
                            && !stristr($stop_words, $last_word))
                    {//Check against "stop words" list
                        $phrases[] = $phrase;
                    }
                    //Phrase length = 3
                    else if($count > 2
                            && !stristr($stop_words, $first_word)
                            && !stristr($stop_words, $last_word)
                            && is_proper_phrase($phrase))
                    {//Phrase must be proper
                        $phrases[] = $phrase;
                    }
                }
            }
        }
    }
}
//End k-mer loop

//Begin postprocessing
$phrases = array_count_values($phrases);
arsort($phrases);

//Discard weak tags
foreach($phrases as $phrase => $strength)
{
    if($strength < 2)
        unset($phrases[$phrase]);
}

foreach($phrases as $phrase => &$strength)
{
    //For single words
    if(str_word_count($phrase) == 1)
    {
        //Check for lowercase and match
        if(is_proper($phrase))
        {
            $lowercase = lcfirst($phrase);
            $lowercase = trim($lowercase);
            if(array_key_exists($lowercase, $phrases))
            {
                $phrases[$lowercase] += $strength;
                unset($phrases[$phrase]);
            }
        }

        //Check for plurals and match
        $pluralized = $phrase.'s';
        $pluralized = trim($pluralized);
        if(array_key_exists($pluralized, $phrases))
        {
            $phrases[$pluralized] += $strength;
            unset($phrases[$phrase]);
        }

        //Check for duplicates
        foreach($phrases as $phrase2 => $strength2)
        {
            if(strcasecmp($phrase, $phrase2)
                && strstr($phrase2, $phrase))
            {
                if($strength == $strength2)
                {
                    unset($phrases[$phrase]);
                }
                else if($strength > $strength2)
                {
                    $strength -= $strength2;
                }
            }
        }

3xtra Reviewed by 3xtra on 6th May 2012. Wordpress plugin error :( This cool plugin for wordpress, that suggest you tags when yo creating or editing posts. But plugin can`t work with russian and polish characters. when plugin suggest me related tags for posts - they looks like � and etc. How to change or rewrite it for supporting non-english characters. I try, but i have no idea.. :( Please Help Me. // Plugin Name: Thoth's Suggested Tags // Plugin URI: http://wiki.github.com/edlab/Thoth-Suggested-Tags/ // Description: Recommends tags Rating: 5