PHP DOM解析器在循环时按类获取特定文本 [英] PHP DOM Parser Get Specific text by Class While Looping

问题描述

我正在研究PHP Simple DOM解析器，我想为我的问题提供一个简单的解决方案

I am working on a PHP Simple DOM Parser and i want a simple solution for my question

<tr>
<td class="one">1</td>
<td class="two">2</td>
<td class="three">3</td>
</tr>
<tr>
<td class="one">10</td>
<td class="two">20</td>
<td class="three">30</td>
</tr>...

我的html与上面的类似

the html of mine is will look similar to the above

我正在遍历 td 这样的

foreach ($sample->find("td") as $ele) 
            { 
                if($ele->class == "one")
                 echo "ONE = ".$ele->plaintext;
                if($ele->class == "two")
                 echo "TWO= ".$ele->plaintext;
            }

但是有没有一种简单的解决方案，如果条件没有得到特定类的明文，我也不需要速记我期待下面这样的事情

But is there any simple solution that without if condition getting the plaintext of particular class i dont want shorthand if also I am expecting something like this below

$ele->class->one

推荐答案

看看:

<?php

$html = "
   <table>
       <tr>
            <td class='one'>1</td>
            <td class='two'>2</td>
            <td class='three'>3</td>
            </tr>
            <tr>
            <td class='one'>10</td>
            <td class='two'>20</td>
            <td class='three'>30</td>
        </tr>
    </table>
";

// Your class name
$classeName = 'one';

$dom = new DOMDocument;
$dom->loadHTML($html);
$xpath = new DOMXPath($dom);

// Get the results
$results = $xpath->query("//*[@class='" . $classeName . "']");
for($i=0; $i < $results->length; $i++) {
    echo $review = $results->item($i)->nodeValue . "<br>";
}



?>

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