duanla3319 2013-04-02 03:57
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从外部页面获取值？

this code is in an external url: www.example.com.

</head><body><div id="cotizaciones"><h1>Cotizaciones</h1><table cellpadding="3" cellspacing="0" class="tablamonedas">
  <tr style="height:19px"><td class="1"><img src="../mvd/usa.png" width="24" height="24" /></td>
  <td class="2">19.50</td>
  <td class="3">20.20</td>
  <td class="4"><img src="../mvd/Bra.png" width="24" height="24" /></td>
<td class="5">9.00</td>
<td class="6">10.50</td>
  </tr><tr style="height:16px" valign="bottom"><td class="15"><img src="../mvd/Arg.png" width="24" height="24" /></td>
<td class="2">2.70</td>
<td class="3">3.70</td>
<td class="4"><img src="../mvd/Eur.png" width="24" height="24" /></td>
<td class="5">24.40</td>
<td class="6">26.10</td>
</tr></table>

i want to get the values of the td, any suggestions? php,jquery etc.

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2条回答 默认 最新

  • dou7466 2013-04-02 04:06
    关注

    You won't be able to do this with javascript, due to security restrictions that only allow you to load data from your own site.

    You will have to pull the content with php (using something as simple as file_get_contents) and then parse it.

    For the parsing, take a read through this comprehensive post:

    How do you parse and process HTML/XML in PHP?

    DOM is likely going to be your best bet.

    Try playing around with this:

    $html = file_get_contents('/path/to/remote/page/');
$dom = new DOMDocument;
$dom->loadHTML($html);
foreach ($dom->getElementsByTagName('td') as $node) {
    echo "Full TD html: " . $dom->saveHtml($node) . "
";
    echo "TD contents: " . $node->nodeValue . "

";
}
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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