使用dom（php）解析img和html代码

Question

I have a code that parsing img and texts. Run the code in php file. It's just showing img src, abc, img src, dfe. And my code is not regular. img tags are may be with link.

I want to parse img and next html . Like this:

Array
(
    [0] => Array
        (
            [src] => http://www.whatever.com
            [text] =>  abc
    <br>
    <h3>title</h3>
    <div class="content">content <a href="link">my link</a></div>
        )

    [1] => Array
        (
            [src] => http://goingnowhere.com
            [text] =>  def
    <br>
    <h3>title 2</h3>
    <div class="content">content <a href="link">my link</a>

    bla bla bla

    </div>
        )

)

How can I do this? My current code:

<?php $sample_html = '
<img src="http://www.whatever.com" alt="" />
abc
<br>
<h3>title</h3>
<div class="content">content <a href="link">my link</a></div>
<img src="http://goingnowhere.com" alt="">
def
<br>
<h3>title 2</h3>
<div class="content">content <a href="link">my link</a>

bla bla bla

</div>
';

$dom = new DOMDocument();
$dom->loadHTML($sample_html);

$data = array();
$images = $dom->getElementsByTagName('img');
foreach ($images as $image) {
$data[] = array(
'src' => $image->getAttribute('src'),
'text' => trim($image->nextSibling->textContent),
);
}

echo '<pre>';
print_r($data); ?>

Answer 1

Use xpath to iterate through all nodes & retrieve data withing two img tags.

<?php $sample_html = '
<img src="http://www.whatever.com" alt="" />
abc
<br>
<h3>title</h3>
<div class="content">content <a href="link">my link</a></div>
<img src="http://goingnowhere.com" alt="">
def
<br>
<h3>title 2</h3>
<div class="content">content <a href="link">my link</a>

bla bla bla

</div>
';

$dom = new DOMDocument();
@$dom->loadHtml($sample_html);

$xpath = new DOMXPath($dom);

$snippet = '';
$arr = array();
$count = $xpath->query('//img')->length;
//loop through all img tags
for($i=0;$i<$count;$i++){

    $node = $xpath->query('//img')->item($i);
    $img_src = $node->getAttribute('src');//first image src

    while ($node = $node->nextSibling) {

      if (get_class($node) != 'DOMElement') {
        continue;
      }

      if ($node->tagName  == 'img') {
        $snippet .= $dom->saveXML($node);
        $arr[] = array(
            'src'=>$img_src,
            'content'=>$snippet
        );
        $img_src = $node->getAttribute('src');//last img src
        $snippet = '';
        break;
      }
      $snippet .= $dom->saveXML($node);

    }
}
//fill last img data
$arr[] = array('src'=>$img_src,'content'=>$snippet);