Php 在文档中获取标记_Php_Html_Domdocument

Php 在文档中获取标记

php html

Php 在文档中获取标记,php,html,domdocument,Php,Html,Domdocument,我正在尝试获取页面中表格的HTML标记： $new_dom = new DOMDocument(); $table = ''; $nodesTable = $this->dom->getElementsbyTagName("table"); foreach($nodesTable as $nodeTable){ $color = $nodeTable->getAttribute('bordercolordark'); if ($color == '#73B

我正在尝试获取页面中表格的HTML标记：

$new_dom = new DOMDocument();

$table = '';

$nodesTable = $this->dom->getElementsbyTagName("table");

foreach($nodesTable as $nodeTable){
    $color = $nodeTable->getAttribute('bordercolordark');
    if ($color == '#73BAFF') {
        $table = $nodeTable;
    }
}

$new_dom->appendChild($table);

echo $new_dom->saveHTML();

以下是somepage.html：

<html>
<table>
    <tr> <td> 10 </td> </tr>
    <tr> <td> 10 </td> </tr>
    <tr> <td> 10 </td> </tr>
    <tr> <td> 10 </td> </tr>
</table>

<table border="1" cellpadding="0" width="500" bordercolorlight="#ACD6FF" bordercolordark="#73BAFF" align="center">
    <tr>
        <td rowspan="2" colspan="2" bgcolor="#73BAFF"> </td>
        <td colspan="3" align="center" bgcolor="#ACD6FF"> Element 1 </td>
        <td colspan="3" align="center" bgcolor="#ACD6FF"> Element 2 </td>
    </tr>
    <tr>
        <td width="50" align="center" bgcolor="#ACD6FF"> 50 </td>
        <td width="50" align="center" bgcolor="#ACD6FF"> 50 </td>
        <td width="50" align="center" bgcolor="#ACD6FF"> 50 </td>
        <td width="50" align="center" bgcolor="#ACD6FF"> 50 </td>
        <td width="50" align="center" bgcolor="#ACD6FF"> 50 </td>
        <td width="50" align="center" bgcolor="#ACD6FF"> 50 </td>
    </tr>
    <tr>
        <td bgcolor="#ACD6FF" width="155" align="center"> Row 1</td>
        <td bgcolor="#ACD6FF" width="45" align="center"> 30 </td>
        <td align="center"> 50 </td>
        <td align="center"> 50 </td>
        <td align="center"> 50 </td>
        <td align="center"> 50 </td>
        <td align="center"> 50 </td>
        <td align="center"> 50 </td>
    </tr>
    <tr>
        <td bgcolor="#ACD6FF" width="155" align="center"> Row 2</td>
        <td bgcolor="#ACD6FF" width="45" align="center"> 30 </td>
        <td align="center"> 60 </td>
        <td align="center"> 60 </td>
        <td align="center"> 60 </td>
        <td align="center"> 60 </td>
        <td align="center"> 60 </td>
        <td align="center"> 60 </td>
    </tr>
    <tr>
        <td bgcolor="#ACD6FF" width="155" align="center"> Row 3</td>
        <td bgcolor="#ACD6FF" width="45" align="center"> 30 </td>
        <td align="center"> 70 </td>
        <td align="center"> 70 </td>
        <td align="center"> 70 </td>
        <td align="center"> 70 </td>
        <td align="center"> 70 </td>
        <td align="center"> 70 </td>
    </tr>
</table>

<table>
    <tr> <td> 10 </td> </tr>
    <tr> <td> 10 </td> </tr>
    <tr> <td> 10 </td> </tr>
    <tr> <td> 10 </td> </tr>
</table>

<table>
    <tr> <td> 10 </td> </tr>
    <tr> <td> 10 </td> </tr>
    <tr> <td> 10 </td> </tr>
    <tr> <td> 10 </td> </tr>
</table>

</html>

$new_dom只是输出\n而不是HTML标记。我试着看这个答案：，但以这种方式附加表格也不起作用

Fatal error: Uncaught exception 'DOMException' with message 'Wrong Document Error'

因此，您无法将节点从一个文档移动到另一个文档。。。如果要这样做，必须使用

deep

标志

$dom = new DOMDocument();
$dom->loadHTMLFile('x.html');
$new_dom = new DOMDocument();

$table = '';

$nodesTable = $dom->getElementsbyTagName("table");

foreach($nodesTable as $nodeTable){
    $color = $nodeTable->getAttribute('bordercolordark');
    if ($color == '#73BAFF') {
        $table = $new_dom->importNode($nodeTable, true);
    }
}

$new_dom->appendChild($table);

echo $new_dom->saveHTML();

这只导入表元素，而不导入子元素

注意：在您的案例中，我将禁用实体加载器

libxml\u disable\u entity\u loader（true）。我不确定XEE攻击是否也适用于loadHTML（）
，但只是为了安全起见