[Solved] tagcloud for modx revolution

<?php
/****************************************************

* Name: Tagcloud

* Version: 1.1.2

* Desc: Displays the containing words of documents in a "tag cloud"

* created by Marc Hinse, [email protected], www.modxcms.de

* modified by Iade Gesso, [email protected], www.iadegesso.netsons.org 

* [modified and ported to revolution on 16th April 2011 by Nico Baden, [email protected], www.nedab.de]

* update: 19.11.09 - AjaxSearch adaptation

*         24.11.09 - Added stop words support (english, french, italian)

*

* Usage: [[tagcloud? &parent=`1,3,5,6,7,14` &min=`3` &landing=`suchergebnisse.html` &landing_id=`29` &lang=`en,it,de`]]

* Parameters: 

* 	parent: comma separated list of the folders that conatin the documents which are to be counted

*	min: Minimum occurrences of a word to be displayed

*	landing: the alias of the search result page

*       landing_id: the id of the search result page to land on

*   lang: comma separated list of languages for which load lists of stop words (default: en)

* ***************************************************/



$parent = isset($parent)? $parent : "0"; 

$min = isset($min)? $min : "2";

$landing = isset($landing)? $landing : "search.html";

$landing_id = isset($landing_id)? $landing_id : "[[~id]]";

$lang = isset($lang)? $lang : "en";



$lang = explode(',',$lang); // languages array



$exclude = array('',' ','  ','   ','-','?','–','—','.',':',','); 	//exclude list

$zeichen = array(',','.',':');		//array of chars to be deleted



// Path

define('TC_SPATH', 'assets/snippets/tagcloud/');


//include snippet file

define('TC_PATH', $modx->config['base_path'].TC_SPATH);



foreach($lang as $l) {

	@include TC_PATH.'stopwords/'.$l.'.inc.php';

	$exclude = array_merge($exclude, $sws);

}



if (strpos($parent,',')){

	$parent= explode(',',$parent);

}



$table = $modx->getFullTableName("site_content");

	foreach ($parent as $daddy){

		$select = $modx->db->select("pagetitle,content,introtext", $table, "parent = $daddy");	// record: title, content, introtext

		while ($contents = $modx->db->getRow($select)) {

			$content.=$contents['content'].' '.$contents['introtext'].' '.$contents['pagetitle']; 	//put them together

		}

	}



$output='<div class="tagcloud">';

$content=strtolower(str_replace($zeichen,'',$modx->stripTags($content)));	//all to lower and without HTML

$array_content=explode(' ',$content);	//split them in separate words

$anzahl=array_count_values($array_content);		//count the words

$words=array();

	foreach($anzahl as $key => $wert) {

		if($wert>$min && (!in_array($key,$exclude))) { 	//look if the word counts the required minimum and is not in the exclude list 

			$words[$key] = $wert;	//put them in a new array

		}

	} 



//unset($words['modx']);  //if you want to override the value of words (in this case 'modx'), uncomment it and put in your word

$max_size=max($words);	//word with most hits

//$words['modx']=8;     // put in again your deleted word and value from two lines above

ksort($words);	//sort them alphabetically (just comment that out, then they will be unsortet

$multiplier=300/$max_size;	//define the multiplier for the size (play with that to fit your site!)




$min_size=30;	//minimum size

	foreach($words as $key => $wert) {

		$font_size=$multiplier*$wert;

		//$countvalues='('.$wert.')';		//uncomment this for displaying the hits next to the links 


$output.='<span><a style="font-size:'.max($font_size,$min_size).'%;" href="'. $modx->config['base_url'] . $landing.'?search='.$key.'&id='.$landing_id.'">'.$key.'</a>'.$countvalues.'</span>  ';

		$output.="\r\n";		


	}

$output.='</div>';

return $output;