php用xpath解析html的代码实例讲解_php实例_

 $xml = simplexml_load_file('https://forums.eveonline.com'); $names = $xml->xpath("html/body/p/p/form/p/p/p/p/p[*]/p/p/table//tr/td[@class='topicViews']"); foreach($names as $name) { echo $name . "
"; }

 $url = 'http://www.baidu.com'; $ch = curl_init(); curl_setopt($ch, CURLOPT_FILE, fopen('php://stdout', 'w')); curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE); curl_setopt($ch, CURLOPT_URL, $url); $html = curl_exec($ch); curl_close($ch); // create document object model $dom = new DOMDocument(); // load html into document object model @$dom->loadHTML($html); // create domxpath instance $xPath = new DOMXPath($dom); // get all elements with a particular id and then loop through and print the href attribute $elements = $xPath->query('//*[@id="lg"]/img/@src'); foreach ($elements as $e) { echo ($e->nodeValue); }