xPath中的innerHTML？

Question

有没有办法检索div元素中包含的HTML（和JavaScript）？

Answer 1

I'm not a PHP developer but I found this:

function getNodeInnerHTML(DOMNode $oNode)
{
    $oDom = new DOMDocument();
    foreach($oNode->childNode as $oChild)
    {
        $oDom->appendChild($oDom->importNode($oChild, true));
    }
    return $oDom->saveHTML();
}

from http://www.sitepoint.com/forums/showthread.php?p=4225203

I don't think you can select content including with only XPath, so a function like the one above may be necessary. And then you select your div like //div[@id='someID'] etc.

Answer 2

$xml=new DOMDOCUMENT();
@$xml->loadHTML($htmlcontents);
$xpath=new DOMXPATH($xml);
$nodes=$xpath->query($xpath);

function getHtml($nodes) {
    $result = '';
    foreach ($nodes as $node) {
        $result .= $node->ownerDocument->saveHtml($node);
    }
return $result;
}

Source: how to get innerhtml by classname or id using php

Answer 3

This will give you the outerHTML rather than the innerHTML, but you can easily strip the extra DIV tags at both ends.

Working example:

$xpath = new DOMXPath( @DOMDocument::loadHTML($the_html_code) ) ;
$domElement = $xpath->evaluate("//div[@id='ID_of_the_div']")->item(0) ;
$outerHTML = $domElement->ownerDocument->saveXML($domElement) ;

Answer 4

Now about:

//div[@id='your div']

If you don't care about performance?