Php 如何使用简单的HTMLDOM解析列表

我有一个html代码，并且我面临着一个问题，就是从下面给出的部分解析来自此html的数据：

<li id=xyz>
  John Johnson
<sup>1<sup>
","
</li>

约翰·约翰逊
1.
","

---

我只想把“约翰·约翰逊”从这个名单中抽出来，别的什么都不想。不知道怎么做。谢谢。

请将您需要的内容用类似的方式围绕起来。 与之相比，这是一个不错的选择

<li id='xyz'>
  <span>John Johnson</span>
  <sup>1<sup>
    ","
</li>

---

使用简单的javascript，您可以为span提供一个类或Id，并从javascript获取它

<span id="grabIt">John Johnson</span>

find（'text'）

是您所追求的。它返回源中找到的所有文本块

根据您的示例，这里有一个工作代码：

// Test data
$input = <<<_DATA_
    <li id=xyz>
      John Johnson
    <sup>1<sup>
    ","
    </li>
_DATA_;

//Create a DOM object
$html = new simple_html_dom();
// Load HTML from a string
$html->load($input);

// >> Long answer
echo "Long answer:<br/>";

// Search all text nodes inside the target node
$search = $html->find('li#xyz text');

// Loop through each node and print it
foreach( $search as $i => $txt ) {
    // No need to specify "->plaintext" since the content is already in plain text here
    echo "$i => " . $txt->plaintext . "<br/>";
}

// >> Short answer
echo "<hr>";
echo "Short answer:<br/>";

// Specifying the index (0th here) returns the Nth element from the array containing all search results
echo $html->find('li#xyz text', 0)->plaintext;

// Clear DOM object
$html->clear();
unset($html);

---

有关更多详细信息，请查看

非常有用！谢谢

Var john=document.getElementById("grabIt").innerText;

// Test data
$input = <<<_DATA_
    <li id=xyz>
      John Johnson
    <sup>1<sup>
    ","
    </li>
_DATA_;

//Create a DOM object
$html = new simple_html_dom();
// Load HTML from a string
$html->load($input);

// >> Long answer
echo "Long answer:<br/>";

// Search all text nodes inside the target node
$search = $html->find('li#xyz text');

// Loop through each node and print it
foreach( $search as $i => $txt ) {
    // No need to specify "->plaintext" since the content is already in plain text here
    echo "$i => " . $txt->plaintext . "<br/>";
}

// >> Short answer
echo "<hr>";
echo "Short answer:<br/>";

// Specifying the index (0th here) returns the Nth element from the array containing all search results
echo $html->find('li#xyz text', 0)->plaintext;

// Clear DOM object
$html->clear();
unset($html);

Long answer:
0 => John Johnson 
1 => 1
2 => "," 
3 => 
-------------------
Short answer:
John Johnson