RSS feed for GetSimple

<?php

//  Begin Function
function createRSSFile($post_title,$post_description,$post_link,$guid)
{
    $returnITEM = "<item>\n";
    $returnITEM .= "<title>".$post_title."</title>\n";
    $returnITEM .= "<link>".$post_link."</link>\n";
    $returnITEM .= "<description>".$post_description."</description>\n";
    $returnITEM .= "<pubDate>".$guid."</pubDate>\n";
    $returnITEM .= "<guid>".$post_link."</guid>\n";
    $returnITEM .= "</item>\n";
    return $returnITEM;
}


// rss_categories - what category public  to rss
// items number
// lenght of descrip)
function buildrssfile($rss_categories,$itemsnumber,$descl)
{
    if (empty($rss_categories)) { $rss_categories    ='news'; }  // only pages from news category
    if (empty($descl)) { $descl    =256; }  //lenght of description
    if (empty($itemsnumber)) { $itemsnumber    =5; }   // number of items in rss
    
    $TITLE_OF_YOUR_RSS_FEED = "YOUR_TITLE_OF_RSS";
    $DESCRIPTION_OF_YOUR_FEED = "DESCRIPTION_OF_RSS";
    
    $path     = tsl('data/pages/');
    $counter = '0';
    $table = '';

    //display all pages
    $filenames = getFiles($path);
    
    $count="0";
    $pagesArray = array();
    if (count($filenames) != 0) { 
        foreach ($filenames as $file) {
            if (isFile($file, $path, 'xml')) {
                $data = getXML($path .$file);
                if ($data->parent == $rss_categories) {
                    if ($data->private<>'Y') {
                        $status = $data->menuStatus;
                        //$pagesArray[$count]['title'] = $data->title;
                        $pagesArray[$count]['title'] = html_entity_decode($data->title, ENT_QUOTES, 'UTF-8');
                        $pagesArray[$count]['parent'] = $data->parent;
                        $pagesArray[$count]['menuStatus'] = $data->menuStatus;
                        $pagesArray[$count]['private'] = $data->private;
                        $pagesArray[$count]['content'] = htmlspecialchars($data->content, ENT_QUOTES, 'UTF-8');
                        //$pagesArray[$count]['content'] = $data->content;
                        if ($data->parent != '') { 
                            $parentdata = getXML($path . $data->parent .'.xml');
                            $parentTitle = $parentdata->title;
                            $pagesArray[$count]['sort'] = $parentTitle .' '. $data->title;
                        } else {
                            $pagesArray[$count]['sort'] = $data->title;
                        }
                        $pagesArray[$count]['url'] = $data->url;
                        $pagesArray[$count]['date'] = $data->pubDate;
                        $pagesArray[$count]['sortdate'] = strtotime($data->pubDate);
                        $parentTitle = '';

                        $count++;
                        
                    }
                }
            }
        }
    }

//sort items by date

$allt = $count;
$timest =0;
$ddd=0;

while ($ddd < $allt) {

$count=1;
while ($count < $allt) {   // this block need to sort pages by publication date if you have better way please let me know

if ($pagesArray[$count]['sortdate']>$pagesArray[$count-1]['sortdate']) {

    $temp_title =   $pagesArray[$count]['title'];
    $temp_parent =     $pagesArray[$count]['parent'];
    $temp_menuStatus =     $pagesArray[$count]['menuStatus'] ;
    $temp_private =   $pagesArray[$count]['private'];                    
    $temp_content =     $pagesArray[$count]['content'];
    $temp_sort =     $pagesArray[$count]['sort'];
    $temp_url =     $pagesArray[$count]['url'];
    $temp_date =     $pagesArray[$count]['date'];
    $temp_sortdate =     $pagesArray[$count]['sortdate'];
    
    $pagesArray[$count]['title'] =   $pagesArray[$count-1]['title'];
    $pagesArray[$count]['parent'] =     $pagesArray[$count-1]['parent'];
    $pagesArray[$count]['menuStatus'] =     $pagesArray[$count-1]['menuStatus'] ;
    $pagesArray[$count]['private']     =   $pagesArray[$count-1]['private'];                    
    $pagesArray[$count]['content'] =     $pagesArray[$count-1]['content'];
    $pagesArray[$count]['sort'] =     $pagesArray[$count-1]['sort'];
    $pagesArray[$count]['url'] =     $pagesArray[$count-1]['url'];
    $pagesArray[$count]['date'] =     $pagesArray[$count-1]['date'];
    $pagesArray[$count]['sortdate'] =     $pagesArray[$count-1]['sortdate'];
    
    $pagesArray[$count-1]['title'] =$temp_title; 
    $pagesArray[$count-1]['parent'] = $temp_parent;
    $pagesArray[$count-1]['menuStatus'] =$temp_menuStatus;
    $pagesArray[$count-1]['private'] = $temp_private;
    $pagesArray[$count-1]['content'] = $temp_content;
    $pagesArray[$count-1]['sort'] =     $temp_sort;
    $pagesArray[$count-1]['url'] =     $temp_url ;
    $pagesArray[$count-1]['date'] =     $temp_date;
    $pagesArray[$count-1]['sortdate'] = $temp_sortdate;

}    
//}
//print_r($pagesArray);
    
    
    $count++;

}
$ddd++;
}


// Lets build the page
$filename = "feeds/index.xml";
$rootURL = "YOUR_DOMAIN/feeds/";
$webroot = "YOUR_DOMAIN";
$latestBuild = date("r");
// Lets define the the type of doc we're creating.
$createXML = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
$createXML .= "<rss version=\"2.0\">\n";
$createXML .= "<channel>
    <title>".$TITLE_OF_YOUR_RSS_FEED."</title>
    <link>".$rootURL."</link>
    <description>".$DESCRIPTION_OF_YOUR_FEED."</description>
    <lastBuildDate>".$latestBuild."</lastBuildDate>
    <docs></docs>
    <language>ru</language>
";


// Lets get the results
$ff=0;
while ($pagesArray[$ff]<>'') {
    $item = $pagesArray[$ff];
    if (empty($item['parent'])) {
        $page = $webroot.$item['url'];    
    } else {
        $page = $webroot.$item['parent']."/".$item['url'];
    }
    $pieces = explode(" ", $item['content']);
    $feedcontent = '';
    $rr=0;
    while (strlen($feedcontent)<$descl) {
        $feedcontent .= $pieces[$rr]." ";
        $rr++;
    }
    $description = $feedcontent;
    $title = $item['title'];
    $guid = $item['date'];
    $createXML .= createRSSFile($title,$description,$page,$guid);
    $ff++;
}

$createXML .= "</channel>\n </rss>";
// Finish it up
$filehandle = fopen($filename,"w") or die("Can't open the file");
fwrite($filehandle,$createXML);
fclose($filehandle);
echo "RSS FEED updated!";

}
?>