获取远程页面上的所有链接

$html = file_get_contents('http://www.php100.com');$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.'<br />';}