You're generating your URL wrong. Notice how you're echoing $crumbs
array into a
href attribute. You should start your url with your site root url and on every foreach loop pass, add appropriate piece of string
$url = "http://www.yoursite.com";
<div class="breadcrumb">
<ul>
<li><a href="<?php echo $url ?>">Home</a></li>
<?php foreach($crumbs as $crumb){
$url .= "/".$crumb;
?>
<li><a href="<?php echo $url; ?>"><?php echo $crumb; ?></a></li>
<?php } ?>
</ul>
</div>