Fixing code to fetch data from dom document (getElementby...) - dom

Question

url : sayuri.go.jp/used-cars
$content = file_get_contents('http://www.sayuri.co.jp/used-cars/');
$dom = new DOMDocument;
$dom->loadHTML($content);
Partial Source code :
<td colspan="4">
<h4 class="stk-title">Toyota Wish G</h4>
</td>
<td colspan="4">
I am trying to go through the source code and for each parts of the above i want to save the url e.g : "/used-cars/B37753-Toyota-Wish-japanese-used-cars"
Here is the code i am using but unsuccessful so far
$p = $dom->getElementsByTagName("h4");
$titles = array();
foreach ($p as $node) {
if ($node->hasAttributes()) {
if($node->getAttribute('class') == "stk-title") {
foreach ($node->attributes as $attr) {
if ($attr->nodeName == "href") {
array_push($titles , $attr->nodeValue);
}
}
}
}
}
print_r($titles) ;
It should give me an array containing all the urls of each car : ("/used-cars/B37753-Toyota-Wish-japanese-used-cars" , "" , "" ......)
but its returning an empty array - i guess i made a mistake in my code and it can't access the urls.
I also need to save the car name inside a variable e.g : $car_name = "Toyota Wish G"

Answer 1

Use XPath:
$doc = new DOMDocument;
$doc->loadHTMLFile('http://www.sayuri.co.jp/used-cars/');
$xpath = new DOMXPath($doc);
$nodes = $xpath->query('//table[#class="itemlist-table"]//h4[#class="stk-title"]/a');
$links = array();
foreach ($nodes as $node) {
$links[] = array(
'href' => $node->getAttribute('href'),
'text' => $node->textContent,
);
}
print_r($links);