Url text displays true but hide link display wrong

[eluser]greedyman[/eluser]
In the home page, I click a category link (in category page) and then click product link (in product details page). In the category page, any link is normal but in the product page, I have a menu as below:

Code:

<div class="crumb_nav">
        <a href="&lt;?php base_url(); ?&gt;">Home</a> &gt;&gt; &lt;!-- home page --&gt;
        <a href="&lt;?php echo $category-&gt;name; ?&gt;"> &lt;!-- category page --&gt;
            &lt;?php echo $category->name; ?&gt;
        </a> &gt;&gt;
        &lt;?php echo $product->name; ?&gt; &lt;!-- product details page --&gt;
    </div> &lt;!-- end .crum_nav --&gt;

All hide links above are the same when I click any link from category page (in href of a tag) but display name in <?php ?> tag is normal. Example:

// menu display
Home >> Fruits and vegetables >> apple
// but all hide links are the same
localhost/dpfoods/fruits-and-vegetables/apple-25

Have anyone know what's problem? Thanks so much!