我是 Xpath 新手。我想遍历 cURL 查询的结果并打印页面上唯一表的每个元素。
我使用 Firefox 的 Xpath 插件来获取我的表达式,我的表结构如下:
<table>
<tr class="listItemOneBg">
<td valign="top">
SMITH
</td>
<td valign="top">
WILLIAM C C
</td>
<td valign="top">
Male
</td>
<td valign="top">
</td>
<td valign="top">
</td>
<td valign="top">
</td>
<td valign="top">
</td>
<td valign="top">
BLACKWOOD
</td>
<td valign="top">
61
</td>
<td valign="top">
1924
</td>
<td valign="top">
<a target="_blank" href='XXX'>
order</a>
</td>
</tr>
<tr class="listItemTwoBg">
<td valign="top">
SMITH
</td>
<td valign="top">
WILLIAM C PAGE-
</td>
<td valign="top">
Male
</td>
<td valign="top">
</td>
<td valign="top">
</td>
<td valign="top">
</td>
<td valign="top">
</td>
<td valign="top">
SWAN
</td>
<td valign="top">
9
</td>
<td valign="top">
1914
</td>
<td valign="top">
<a target="_blank" href='XXY'>
order</a>
</td>
</tr>
这是我到目前为止尝试过的代码。我收到一条消息“警告:为 foreach() 提供的参数无效”。我究竟做错了什么?
$page = curl_exec($ch);
curl_close($ch);
// Create new PHP DOM document
$dom = new DOMDocument;
// Load html from curl request into document model
@$dom->loadHTML($page);
$xpath = new DOMXPath($dom);
$tableRows = $xpath->query("id('divResults')/table/tbody/tr");
foreach ($tableRows as $row) {
// fetch all 'tds' inside this 'tr'
$td = $xpath->query('td', $row);
echo $td->item(1)->textContent;
}