Deduping a list of urls using PHP

gistfile1.aw

<?php 
// get all urls from the home page that are

$html = file_get_contents('http://www.catwalkyourself.com');

$dom = new DOMDocument();
@$dom->loadHTML($html);

// grab all the on the page
$xpath = new DOMXPath($dom);
$hrefs = $xpath->evaluate("/html/body//a");

for ($i = 0; $i < $hrefs->length; $i++) {
   $href = $hrefs->item($i);
   $url = $href->getAttribute('href');
   
   if($url = preg_match_all('((www|http://)(www)?.catwalkyourself.com\/?.*)', $url, $matches[0])){
   	$urls = $matches[0][0][0];
   	$list = implode( ', ', array_unique( explode(", ", $urls) ) );
  	echo $list . '<br/>';
  	//print_r($list);
   }
}