php xquery parsing html - php

Question

how to parse nested html tags like this structure:
<article class="tile">
<div class="tile-content">
ignore
<div class="tile-content__text tile-content__text--arrow-white">
<label class="label-date label-date--blue">01.12.2021</label>
<h4><a class="link-color-black" href="link-1">title-1</a></h4>
<p class="tile-content__paragraph tile-content__paragraph--gray pd-ver-10">​
content-1
</p>
</div>
more
</div>
<article class="tile">
<div class="tile-content">
ignore
<div class="tile-content__text tile-content__text--arrow-white">
<label class="label-date label-date--blue">02.12.2021</label>
<h4><a class="link-color-black" href="link-2">title-2</a></h4>
<p class="tile-content__paragraph tile-content__paragraph--gray pd-ver-10">​
content-2
</p>
</div>
more
</div>
</article>
to array like:
$parsedArray = [
0 =>
['title => 'title',
'link' => 'link-1',
'date' => '2021-12-01',
'content' => 'content-1']
1 =>
['title => 'title-2',
'link' => 'link-2',
'date' => '2021-12-02',
'content' => 'content-2']
,....]
i use xquery like above, but this remove all tags, after that i have only implode text from all tags, i need to extract info from all tags, any tip?
$dom = new DOMDocument();
$dom->loadHTML($html['html']);
$xpath = new DOMXPath($dom);
$nodelist = $xpath->query("//article[contains(#class, 'tile')]");
foreach ($nodelist as $n) {
echo '<pre>';
var_dump($n);
echo '</pre>';
}

Answer 1

var_dump won't parse the DOM :)
You just need to re-query for your elements within the tile, then assign them to the array.
Assign a working item array to define the structure if it matters, else just build up the result as you go.
<?php
$str = '<article class="tile">
<div class="tile-content">
ignore
<div class="tile-content__text tile-content__text--arrow-white">
<label class="label-date label-date--blue">02.12.2021</label>
<h4><a class="link-color-black" href="link-2">title-2</a></h4>
<p class="tile-content__paragraph tile-content__paragraph--gray pd-ver-10">
content-2
</p>
</div>
more
</div>
</article>';
$dom = new DOMDocument();
libxml_use_internal_errors(true);
$dom->loadHtml($str);
libxml_clear_errors();
$xpath = new DOMXPath($dom);
$result = [];
foreach ($xpath->query("//article[contains(#class, 'tile')]") as $tile) {
// define item structure
$item = [
'title' => '',
'link' => '',
'date' => '',
'content' => ''
];
// find date
$query = $xpath->query("//label[contains(#class, 'label-date')][1]", $tile);
if (count($query)) {
$item['date'] = $query[0]->nodeValue;
}
// find link/title
$query = $xpath->query("//h4/a[1]", $tile);
if (count($query)) {
$item['link'] = $query[0]->getAttribute('href');
$item['title'] = $query[0]->nodeValue;
}
// find content
$query = $xpath->query("//p[contains(#class, 'tile-content__paragraph')][1]", $tile);
if (count($query)) {
$item['content'] = $query[0]->nodeValue;
}
// assign
$result[] = $item;
// cleanup
unset($item, $query);
}
print_r($result);
Output:
Array
(
[0] => Array
(
[title] => title-2
[link] => link-2
[date] => 02.12.2021
[content] =>
content-2
)
)