使用PHP从HTML标记中获取子节点列表

Question

I am currently using the PHP DOM to get the BODY tag from HTML.

$doc = new DOMDocument();
$doc->loadHTML($HTML);    
$body = preg_replace("/.*<body[^>]*>|<\/body>.*/si", "", $HTML);

The above code completely gives me the html from the body tag for a given HTML.

Can I get the HTML tags with $body as an array?

Answer 1

If possible, I would use DOM - it will make your solution a lot more reliable and cleaner to use.

This should get your headed in the right direction (I'm not writing the solution for you, sorry):

$html = file_get_contents("http://google.com");
$dom = new DOMdocument();
@$dom->loadHTML($html);
$xpath = new DOMXPath($dom);

$elements = $xpath->query("//*");


foreach ($elements as $element) {

        echo "<h1>". $element->nodeName. "</h1>";
        $nodes = $element->childNodes;

        foreach ($nodes as $node) {
                echo "<h2>".$node->nodeName. "</h2>";
                echo $node->nodeValue. "\n";
        }

}