How to get innerHTML of DOMNode?
What function do you use to get innerHTML of a given DOMNode in the PHP DOM implementation? Can someone give reliable solution?
Of course outerHTML will do too.
Compare this updated variant with PHP Manual User Note #89718:
<?php
function DOMinnerHTML(DOMNode $element)
{
$innerHTML = "";
$children = $element->childNodes;
foreach ($children as $child)
{
$innerHTML .= $element->ownerDocument->saveHTML($child);
}
return $innerHTML;
}
?>
Example:
<?php
$dom= new DOMDocument();
$dom->preserveWhiteSpace = false;
$dom->formatOutput = true;
$dom->load($html_string);
$domTables = $dom->getElementsByTagName("table");
// Iterate over DOMNodeList (Implements Traversable)
foreach ($domTables as $table)
{
echo DOMinnerHTML($table);
}
?>
这是一个函数式编程风格的版本：
function innerHTML($node) {
return implode(array_map([$node->ownerDocument,"saveHTML"],
iterator_to_array($node->childNodes)));
}
要返回元素的html ，可以使用C14N（）：
$dom = new DOMDocument();
$dom->loadHtml($html);
$x = new DOMXpath($dom);
foreach($x->query('//table') as $table){
echo $table->C14N();
}
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