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這篇文章主要講解了“php如何用xpath解析html”,文中的講解內容簡單清晰,易于學習與理解,下面請大家跟著小編的思路慢慢深入,一起來研究和學習“php如何用xpath解析html”吧!
實例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 . "<br/>"; }
實例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); }
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