php用xpath解析html的代码实例讲解

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 . \"<br/>\"; 
}

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);
}

以上就是相关的2个实例内容，以及相关的代码， 感谢大家对免费资源网的支持。