如何使用PHP DOM查询从HTML表中选择文本 - How to select text from HTML table using PHP DOM query?

How to select text from HTML table using PHP DOM query?

如何使用PHP DOM查询从HTML表单元格中获取文本？

HTML表格是：

<table>
  <tr>
    <th>Job Location:</th>
    <td><a href="/#">Kabul</a>
    </td>
  </tr>
  <tr>
    <th>Nationality:</th>
    <td>Afghan</td>
  </tr>
  <tr>
    <th>Category:</th>
    <td>Program</td>
  </tr>
</table>

我有以下查询，但它不起作用：

$xmlPageDom = new DomDocument();
@$xmlPageDom->loadHTML($html);
$xmlPageXPath = new DOMXPath($xmlPageDom);
$value = $xmlPageXPath->query('//table td /text()');

使用php-domdocument获得一个完整的表并将其打印为

答案是这样的：

$html = "<table ID='myid'><tr><td>1</td><td>2</td></tr><tr><td>4</td><td>5</td></tr><tr><td>7</td><td>8</td></tr></table>";
$xml = new DOMDocument();
$xml->validateOnParse = true;
$xml->loadHTML($html);
$xpath = new DOMXPath($xml);
$table =$xpath->query("//*[@id='myid']")->item(0);
$rows = $table->getElementsByTagName("tr");
foreach ($rows as $row) {
    $cells = $row -> getElementsByTagName('td');
    foreach ($cells as $cell) {
        print $cell->nodeValue;
    }
}

编辑：使用这个代替

$table = $xpath->query("//table")->item(0);