PHP gets all links in a page

By using this code snippet, you can easily extract all links on any web page.

 $html = file_get_contents('http://www.example.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');
 echo $url.'
 ';
 }

PHP