php怎么用xpath解析html

本文小编为大家详细介绍"php怎么用xpath解析html"，内容详细，步骤清晰，细节处理妥当，希望这篇"php怎么用xpath解析html"文章能帮助大家解决疑惑，下面跟着小编的思路慢慢深入，一起来学习新知识吧。

实例1

$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 . "
"; }

实例2

$url = 'http://www.baidu.com';$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);}

读到这里，这篇"php怎么用xpath解析html"文章已经介绍完毕，想要掌握这篇文章的知识点还需要大家自己动手实践使用过才能领会，如果想了解更多相关内容的文章，欢迎关注行业资讯频道。