Ordine per data decrescente

[poad]

Ciao a tutti, avrei bisogno che il risultato di questo codice mi metta in ordine dei feed rss come posso fare?

Ecco il codice:

<?php
$RSS_Content = array();

function RSS_Tags($item, $type)
{
        $y = array();
        $tnl = $item->getElementsByTagName("title");
        $tnl = $tnl->item(0);
        $title = $tnl->firstChild->textContent;

        $tnl = $item->getElementsByTagName("link");
        $tnl = $tnl->item(0);
        $link = $tnl->firstChild->textContent;
        
        $tnl = $item->getElementsByTagName("pubDate");
        $tnl = $tnl->item(0);
        $date = $tnl->firstChild->textContent;        

        $tnl = $item->getElementsByTagName("description");
        $tnl = $tnl->item(0);
        $description = $tnl->firstChild->textContent;

        $y["title"] = $title;
        $y["link"] = $link;
        $y["date"] = $date;        
        $y["description"] = $description;
        $y["type"] = $type;
        
        return $y;
}


function RSS_Channel($channel)
{
    global $RSS_Content;

    $items = $channel->getElementsByTagName("item");
    
    // Processing channel
    
    $y = RSS_Tags($channel, 0);        // get description of channel, type 0
    array_push($RSS_Content, $y);
    
    // Processing articles
    
    foreach($items as $item)
    {
        $y = RSS_Tags($item, 1);    // get description of article, type 1
        array_push($RSS_Content, $y);
    }
}

function RSS_Retrieve($url)
{
    global $RSS_Content;

    $doc  = new DOMDocument();
    $doc->load($url);

    $channels = $doc->getElementsByTagName("channel");
    
    $RSS_Content = array();
    
    foreach($channels as $channel)
    {
         RSS_Channel($channel);
    }
    
}


function RSS_RetrieveLinks($url)
{
    global $RSS_Content;

    $doc  = new DOMDocument();
    $doc->load($url);

    $channels = $doc->getElementsByTagName("channel");
    
    $RSS_Content = array();
    
    foreach($channels as $channel)
    {
        $items = $channel->getElementsByTagName("item");
        foreach($items as $item)
        {
            $y = RSS_Tags($item, 1);    // get description of article, type 1
            array_push($RSS_Content, $y);
        }
         
    }

}


function RSS_Links($url, $size = 15)
{
    global $RSS_Content;

    $page = "<ul>";

    RSS_RetrieveLinks($url);
    if($size > 0)
        $recents = array_slice($RSS_Content, 0, $size + 1);

    foreach($recents as $article)
    {
        $type = $article["type"];
        if($type == 0) continue;
        $title = $article["title"];
        $link = $article["link"];
        $page .= "[*]<a href=\"$link\">$title</a>\n";            
    }

    $page .="[/list]\n";

    return $page;
    
}



function RSS_Display($url, $size = 15, $site = 0, $withdate = 0)
{
    global $RSS_Content;

    $opened = false;
    $page = "";
    $site = (intval($site) == 0) ? 1 : 0;

    RSS_Retrieve($url);
    if($size > 0)
        $recents = array_slice($RSS_Content, $site, $size + 1 - $site);

    foreach($recents as $article)
    {
        $type = $article["type"];
        if($type == 0)
        {
            if($opened == true)
            {
                $page .="[/list]\n";
                $opened = false;
            }
            $page .="[b]";
        }
        else
        {
            if($opened == false) 
            {
                $page .= "<ul>\n";
                $opened = true;
            }
        }
        if($withdate)
        {
        $nowdata=date ("D, d M Y");
        $nowore=date ("H:i:s");
        $agendanow="$nowdata $nowore GMT";
          $datelong = $article["date"];
        $date=substr($datelong, 5, 17);
          $page .=' <span class="rssdate">'.$date.'</span>';
        }
        $title = $article["title"];
        $link = $article["link"];
        $page .= "[*]<a href=\"$link\">$title</a>";
        $description = $article["description"];
        if($description != false)
        {
            $page .= "
<span class='rssdesc'>$description$agendanow</span>";
        }
        $page .= "\n";            
        
        if($type==0)
        {
            $page .="[/b]
";
        }

    }

    if($opened == true)
    {    
        $page .="[/list]\n";
    }
    return $page."\n";
    
}


?>

Grazie a tutti