Question

我想在每篇文章（表格）中获取tr 2，td 4，第一个a上的文字，我不能像我print_r时那样直接链接到文本我没有得到任何东西显示回来。

// table 1
      <table class="articles">
         <tbody>
           <tr>some text here maybe tags</tr>
           <tr>
              <td> some text here maybe tags </td>
              <td> some text here maybe tags </td>
              <td> some text here maybe tags </td>
              <td> some text here maybe tags </td>
              <td><a href="link.html">WANT TO GET THIS TEXT</a></td>
           </tr>
         </tbody>   

      </table> 

// table 2
      <table class="articles">
         <tbody>
           <tr>some text here maybe tags</tr>
           <tr>
              <td> some text here maybe tags </td>
              <td> some text here maybe tags </td>
              <td> some text here maybe tags </td>
              <td> some text here maybe tags </td>
              <td><a href="link.html">WANT TO GET THIS TEXT</a></td>
           </tr>
         </tbody>   

      </table>

// more tables etc.

      <table class="articles">
         <tbody>
           <tr>some text here maybe tags</tr>
           <tr>
              <td> some text here maybe tags </td>
              <td> some text here maybe tags </td>
              <td> some text here maybe tags </td>
              <td> some text here maybe tags </td>
              <td><a href="link.html">WANT TO GET THIS TEXT</a></td>
           </tr>
         </tbody>   

      </table>

我的phpQuery代码没有错误但没有显示任何内容，我不确定我做错了什么。

<?php
require "phpQuery/phpQuery-onefile.php";


        // Load betting page
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, 'http://example.net/');
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        $html = curl_exec($ch);
        curl_close($ch);

        // Create phpQuery document with returned HTML
        $doc = phpQuery::newDocument($html);

        $articleDate = array();


        $surroundingTheArticles = $doc->find('table.articles');

            foreach( $surroundingTheArticles as $eachArticle)
            { 
             // get table rows    
             $articleDate[]  .= pq($eachArticle)->find('tbody:eq(0) tr:eq(1) td:eq(4)')->text();  // maybe first:a or something - don't know

            }

         print_r($articleDate[1]); 
         // find a way to print all article dates  

?>

Answer 1

此解决方案需要您使用simple_html_dom。你可以得到它here

<?php
require_once 'simple_html_dom.php';

$html = '
<table class="articles">
         <tbody>
           <tr>some text here maybe tags</tr>
           <tr>
              <td> some text here maybe tags </td>
              <td> some text here maybe tags </td>
              <td> some text here maybe tags </td>
              <td> some text here maybe tags </td>
              <td><a href="link.html">WANT TO GET THIS TEXT</a></td>
           </tr>
         </tbody>   

      </table> 

      <table class="articles">
         <tbody>
           <tr>some text here maybe tags</tr>
           <tr>
              <td> some text here maybe tags </td>
              <td> some text here maybe tags </td>
              <td> some text here maybe tags </td>
              <td> some text here maybe tags </td>
              <td><a href="link.html">WANT TO GET THIS TEXT</a></td>
           </tr>
         </tbody>   

      </table>


      <table class="articles">
         <tbody>
           <tr>some text here maybe tags</tr>
           <tr>
              <td> some text here maybe tags </td>
              <td> some text here maybe tags </td>
              <td> some text here maybe tags </td>
              <td> some text here maybe tags </td>
              <td><a href="link.html">WANT TO GET THIS TEXT</a></td>
           </tr>
         </tbody>   

      </table>  
';

$html = str_get_html($html);

foreach($html->find('table[class=articles]') as $element){
    $result = $element->find('tr');
    $result = $result[1]->find('td');
    echo($result[4]); echo('<br>');
}


?>

如何在foreach循环中使用phpQuery从表中获取数据

1 个答案: