Php 为RSS提要制作slug

我想创建指向RSS帖子的链接，但我需要一个“slug”。我想用“-”替换空格，这样我就可以将链接重定向到我在wordpress网站上的帖子。我的RSS:

<?php

include("connect.inc.php");

$items = mysql_query("select * from dailynewsitems where actief = '1' and pubDate <=      NOW() order by id DESC limit 15");

echo "<?xml version=\"1.0\" encoding=\"iso-8859-1\" ?>
<rss version=\"2.0\"  xmlns:atom=\"http://www.w3.org/2005/Atom\">
<channel>
<title>Nieuwsfeed WebGiants Financieel</title>
<description>Nieuwsfeed WebGiants</description>
<link>http://modules.publiceer.net/nieuwsfeed_webgiants2012.php</link>
<language>nl</language>";

while ($item = mysql_fetch_object($items)) {
    $id = $item->id;
    $title = $item->title;
    $description = $item->description;
    $longdesc = $item->longdesc;

    list($d, $m, $y) = explode("-", $item->pubDate); 

    echo '<item>'; 
    echo '<guid>' . $item->id . '</guid>';
    echo '<title>' . htmlspecialchars($title) . '</title>';
    echo 'DATUM<pubDate>' . date("D", mktime(0, 0, 0, $m, $d, $y)) . ', ' . $d . ' ' . date("M", strtotime($item->pubDate)) . ' ' . $y . ' 00:00:00 CST</pubDate>';
    echo '<description>' . htmlspecialchars($description) . '</description>';
    echo '<longdesc>' . htmlspecialchars($longdesc) . '</longdesc>';
    echo "<link>http://www.webgiants.nl/geen-categorie/".$item->title."</link>";
    echo '</item>'; 
} 


echo "</channel>";
echo "</rss>";

---

只需使用str\u replace函数即可

echo”http://www.webgiants.nl/geen-categorie/.str_替换（“，”-“，$item->title）。”；
我会首先将mysql函数更改为mysqli函数，因为mysql已被弃用
 谢谢你的回答。我如何实现它？我使用了$slug=str_replace（“，“-”，$title）$slug=$item->slug；回声“鼻涕虫”，鼻涕虫；但这不起作用
echo "<link>http://www.webgiants.nl/geen-categorie/".str_replace(" ", "-", $item->title)."</link>";