Проблемма с снипетом TvTagCloud

<?php

/****************************************************
* Name: TvTagCloud
* Version: 2.0
* Desc: Displays the tags from a documents tvar in a "tag cloud"
* Created by Kyle Jaebker and optimized by Mark Kaplan
* style code added by Garry Nutting
* Based of code by Marc Hinse, [email protected], www.modxcms.de (original TagCloud creator)
*
* Usage: [!TvTagCloud? &parent=`1` &landing=`22` &tvTags=`docTags` &showCount=`1`!]
*
* Parameters:
* 	parent: folder that conatins the documents which are to be counted
*   min: minimum number of tag occurances for tag to show, 0 for all
*   landing: id of document to display ditto listings
*   tvTags: the template variable that has the tags
*   tagDelim: delimiter between tags in tvar
*   displayType: [cloud | list] output as a tag cloud or an unordered list
*   showCount: if you want the number of occurances to be displayed set to 1
*   caseSensitive: if you want tag duplicate removal to be case sensitive set to 1
*
*Landing Page setup:
*   the landing page should have a call to ditto (the latest version) with at
*   minimum the following tagging parameters set:
*
*   [!ditto? &startID=`1` &tagData=`tvdocTags` &tagDelimiter=`,`!]
*
* ***************************************************/

$parent = isset ($parent) ? $parent : "0";
$min = isset ($min) ? $min : "0";
$landing = isset ($landing) ? $landing : "[~[*id*]~]";
$tvTags = isset ($tvTags) ? $tvTags : 'repo_tags';
$tagDelim = isset ($tagDelim) ? $tagDelim : ',';
$displayType = isset ($displayType) ? $displayType : 'cloud';
$showCount = isset ($showCount) ? $showCount : 0;
$caseSensitive = isset ($caseSensitive) ? $caseSensitive : 0;

//-- styles for different sizes in the tag cloud (smallest to largest)
$styles = array (
	's1',
	's2',
	's3',
	's4',
	's5'
);

$subEntities = $modx->getDocumentChildren($parent); //,1,0,"id,pagetitle");

global $docTags;
$docTags = array ();

if (!function_exists('getTags')) {
	function getTags($resource, $tvTags) {
		global $modx, $docTags, $parent;

		$baspath= $modx->config["base_path"] . "manager/includes";
	    include_once $baspath . "/tmplvars.format.inc.php";
	    include_once $baspath . "/tmplvars.commands.inc.php";

		$cIDs = array();
		foreach ($resource as $doc => $values) {
			$cIDs[] = $values['id'];
		}

		$tb1 = $modx->getFullTableName("site_tmplvar_contentvalues");
		$tb2 = $modx->getFullTableName("site_tmplvars");
		$query = "SELECT stv.name,stc.tmplvarid,stc.contentid,stv.type,stv.display,stv.display_params,stc.value";
		$query .= " FROM ".$tb1." stc LEFT JOIN ".$tb2." stv ON stv.id=stc.tmplvarid ";
		$query .= " WHERE stv.name='".$tvTags."' AND stc.contentid IN (".implode($cIDs,",").") ORDER BY stc.contentid ASC;";
		$rs = $modx->db->query($query);
		$tot = $modx->db->getRecordCount($rs);
		$resourceArray = array();
		for($i=0;$i<$tot;$i++)  {
			$row = @$modx->fetchRow($rs);
			$docTags[$row['contentid']]['tags'] = getTVDisplayFormat($row['name'], $row['value'], $row['display'], $row['display_params'], $row['type'],$row['contentid']);
		}
		if ($tot != count($cIDs)) {
			$query = "SELECT name,type,display,display_params,default_text";
			$query .= " FROM $tb2";
			$query .= " WHERE name='".$tvTags."' LIMIT 1";
			$rs = $modx->db->query($query);
			$row = @$modx->fetchRow($rs);
			$defaultOutput = getTVDisplayFormat($row['name'], $row['default_text'], $row['display'], $row['display_params'], $row['type'],$row['contentid']);
			foreach ($cIDs as $id) {
				if (!isset($docTags[$id]['tags'])) {
					$docTags[$id]['tags'] = $defaultOutput;
				}
			}
		}
	}
}

getTags($subEntities, $tvTags);

if (!function_exists('getSizeStyle')) {
    function getSizeStyle($value) {
    	$step = (100 / $value); // get percentage

    	//-- reverse logic (smaller number = higher frequency)
    	if ($step < 20) {
    		$style = 4;
    	} else
    		if ($step >= 20 && $step < 40) {
    			$style = 3;
    		} else
    			if ($step >= 40 && $step < 60) {
    				$style = 2;
    			} else
    				if ($step >= 60 && $step < 80) {
    					$style = 1;
    				} else
    					if ($step >= 80) {
    						$style = 0;
    					}
    	return $style;
    }
}

$content = '';

$firstDoc = 1;

foreach ($docTags as $n => $v) {
	if ($firstDoc) {
		$content = $v['tags'];
		$firstDoc = 0;
	} else {
		$content .= $tagDelim . $v['tags'];
	}
}

if ($displayType == 'cloud') {
  $output = '<div class="tagcloud">';
}
$array_content = explode($tagDelim, $content); //split them in separate words

foreach ($array_content as $tag) {
	$tags[] = ($caseSensitive) ? $tag : strtolower($tag);
}

$wordCount = array_count_values($tags); //count the words

$words = array ();
foreach ($wordCount as $key => $value) {
	if ($value >= $min) {
		$words[$key] = $value; //put them in a new array
	}
}

$wordStyles = array_map("getSizeStyle", $wordCount);

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

if ($displayType !== 'cloud') {
	$output .= '<ul>';
	$output .= "\r\n";
}

foreach ($words as $key => $value) {
	if ($showCount) {
		$countvalues = '(' . $value . ')';
	}
	if ($displayType == 'cloud') {
		$output .= '<span><a class="' . $styles[$wordStyles[$key]] . '" href="[~' . $landing . '~]&tags=' . urlencode(trim($key)) . '">' . trim($key) . $countvalues . '</a></span>';
		$output .= "\r\n";
	} else {
		$output .= '<li><a href="[~' . $landing . '~]&tags=' . urlencode(trim($key)) . '">' . trim($key) . ' ' . $countvalues . '</a></li>';
		$output .= "\r\n";
	}
}

if ($displayType !== 'cloud') {
	$output .= '</ul>';
	$output .= "\r\n";
}

if ($displayType == 'cloud') {
  $output .= '</div>';
}
return $output;
?>