我有一部分构造不完整的html。 例如:
<div id='notrequired'>
<div>
<h3>Some examples :-)</h3>
STL is a library, not a framework.
</div>
</p>
</a>
<a target='_blank' href='http://en.wikipedia.org/wiki/Library_%28computing%29'>Read more</a>;
</div>
<a target='_blank' href='http://en.wikipedia.org/wiki/Library_%28computing%29'>Read more</a>";
您可以在此注意到我有意外的</p>
和</a>
标记。
我尝试了一段代码来移除<div id='notrequired'>
并且它有效,但无法正确处理它。
以下是代码段:
function DOMRemove(DOMNode $from) {
$from->parentNode->removeChild($from);
}
$dom = new DOMDocument();
@$dom->loadHTML($text); //$text contains the above mentioned HTML
$selection = $dom->getElementById('notrequired');
if($selection == NULL){
$text = $dom->saveXML();
}else{
$refine = DOMRemove($selection);
$text = $dom->saveXML($refine);
}
问题是$dom->saveXML
保存为HTML内容:
<?xml version="1.0" standalone="yes"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
<html>
<body>
<a target="_blank" href="http://en.wikipedia.org/wiki/Library_%28computing%29">Read more</a>
</body>
</html>
我只需要:
<a target='_blank' href='http://en.wikipedia.org/wiki/Library_%28computing%29'>Read more</a>
而不是<HTML>
和<BODY>
代码。
我错过了什么?还有其他方法做得更好吗?
答案 0 :(得分:2)
好的..我想我找到了解决方案。方法可能不对,但它完成了工作!
由于Hakre指出它与innerHTML in PHP's DomDocument?完全相同,但并不是完全相同,但它给了我一个使用这个想法的提示。谢谢你的建议。
它帮助我构建了以下解决方案:
function DOMRemove(DOMNode $from) {
$from->parentNode->removeChild($from);
}
function DOMinnerHTML($element)
{ echo "Ashwin";
$innerHTML = "";
$children = $element->childNodes;
foreach ($children as $child)
{
$tmp_dom = new DOMDocument();
$tmp_dom->appendChild($tmp_dom->importNode($child, true));
$innerHTML.=trim($tmp_dom->saveHTML());
}
return $innerHTML;
}
$dom = new DOMDocument();
$dom->preserveWhiteSpace = false;
@$dom->loadHTML($test);
$a = $dom->getElementById('step');
$b = DOMRemove($a);
$c = $dom->saveXML($b);
$domTable = $dom->getElementsByTagName("body");
foreach ($domTable as $tables)
{
$x = DOMinnerHTML($tables);
echo $x;
}
如果输入为:
<div id='step'>
<div >
<h3>Some examples :-(</h3>
Blah blah blah...
</div> </p>
</a>
<a target='_blank' href='#'>Read more</a>;
</div>
<div id='step2'>
<div>
<h3>Some examples :-) :-D</h3>
Blah2 blah2 blah2...
</div> </p> </a>
</div>
<a target='_blank' href='#'>Read more</a>
<a target='_blank' href='#'>Read more</a>
<a target='_blank' href='#'>Read more</a>
正如预期的那样,输出是:
<div id="step2">
<div>
<h3>Some examples :-) :-D</h3>
Blah2 blah2 blah2...
</div>
</div>
<a target="_blank" href="#">Read more</a>
<a target="_blank" href="#">Read more</a>
<a target="_blank" href="#">Read more</a>
解决方案有效但可能不是最佳的。 有什么想法吗?