重复的多个类值进入DIV - Duplicate multiple class value get inside the DIV

我有一个html部分要通过简单的domparser检索。

这是我的HTML代码。

<div class="descriptio">
    <div class="sptr"><h4>Directors</h4><a href="">Jhon 1</a>, <a href="">Jhon 2</a>, <a href="">Jhon 3</a></div>
    <div class="sptr"><h4>Writers</h4><a href="">Doe 1</a>, <a href="">Doe 2</a>, <a href="">Doe 3</a></div>
    <div class="sptr"><h4>Stars</h4><a href="">Ann 1</a>, <a href="">Ann 2</a>, <a href="">Ann 3</a></div>
</div>

我想在"sptr"类中获得不同的"descriptio"类值。我想要找回的东西。

董事：Jhon 1，Jhon 2，Jhonn 3

作者：Doe 1，Doe 2，Doe 3

明星：安1，安2，安3

我试过用这个代码，但它是错误的

<?PHP 
    $directors = '';
    foreach ($html_page_url->find('div.description div.sptr') as $val) 
    {
        $directors.= $val.',';
    } 
?>

我该如何解决这个问题？

使用DOMDocument和DomXPath:

<?php 

$html = '<div class="descriptio">
    <div class="sptr"><h4>Directors</h4><a href="">Jhon 1</a>, <a href="">Jhon 2</a>, <a href="">Jhon 3</a></div>
    <div class="sptr"><h4>Writers</h4><a href="">Doe 1</a>, <a href="">Doe 2</a>, <a href="">Doe 3</a></div>
    <div class="sptr"><h4>Stars</h4><a href="">Ann 1</a>, <a href="">Ann 2</a>, <a href="">Ann 3</a></div>
</div>';
$doc = new DOMDocument();
$doc->loadXML($html);
$finder = new DomXPath($doc);
$classname="descriptio";
$divDescriptio = $finder->query("//*[contains(@class, '$classname')]");
$i = 0;
$row = [];
foreach ($divDescriptio[0]->getElementsByTagName('div') as $element) 
{
    $row[$i]['title'] = $element->getElementsByTagName('h4')[0]->nodeValue;
    $names = $element->getElementsByTagName('a');
    foreach($names as $name)
    {
        $row[$i][] = $name->nodeValue;
    }
    $i++;
}   

var_dump($row);
?>

输出：

array(3) {
  [0]=>
  array(4) {
    ["title"]=>
    string(9) "Directors"
    [0]=>
    string(6) "Jhon 1"
    [1]=>
    string(6) "Jhon 2"
    [2]=>
    string(6) "Jhon 3"
  }
  [1]=>
  array(4) {
    ["title"]=>
    string(7) "Writers"
    [0]=>
    string(5) "Doe 1"
    [1]=>
    string(5) "Doe 2"
    [2]=>
    string(5) "Doe 3"
  }
  [2]=>
  array(4) {
    ["title"]=>
    string(5) "Stars"
    [0]=>
    string(5) "Ann 1"
    [1]=>
    string(5) "Ann 2"
    [2]=>
    string(5) "Ann 3"
  }
}

如果你想把它们保存在3个不同的变量中，你可以这样做：

$html = <<<HTML
<div class="descriptio">
    <div class="sptr"><h4>Directors</h4><a href="">Jhon 1</a>, <a href="">Jhon 2</a>, <a href="">Jhon 3</a></div>
    <div class="sptr"><h4>Writers</h4><a href="">Doe 1</a>, <a href="">Doe 2</a>, <a href="">Doe 3</a></div>
    <div class="sptr"><h4>Stars</h4><a href="">Ann 1</a>, <a href="">Ann 2</a>, <a href="">Ann 3</a></div>
</div>
HTML;
$doc = new DOMDocument();
$doc->loadHTML($html);
// Retrieve each category
$headers = $doc->getElementsByTagName('h4');
foreach ($headers as $header) {
    // This will hold the name of each variable
    $category = strtolower($header->nodeValue);
    // This will become $directors, $writers or $stars
    $$category = "{$header->nodeValue}: ";
    // Retrieve the links of each category
    $links = $header->parentNode->getElementsByTagName('a');
    $temp = array();
    foreach ($links as $link) {
        $temp[] = $link->nodeValue;
    }
    $$category .= implode(',', $temp);
}
echo "{$directors}'n{$writers}'n{$stars}";

输出：

Directors: Jhon 1,Jhon 2,Jhon 3
Writers: Doe 1,Doe 2,Doe 3
Stars: Ann 1,Ann 2,Ann 3