Question

I get a page using file_get_contents from a remote server, but I want to filter that page and get a DIV from it that has class “text” using PHP. I started with DOMDocument but I’m lost now.

Any help?

$file = file_get_contents("xx");
$elements = new DOMDocument();
$elements->loadHTML($file);
foreach ($elements as $element) {
    if( !is_null($element->attributes)) {
        foreach ($element->attributes as $attrName => $attrNode) {
            if( $attrName == "class" && $attrNode== "text") {
                echo $element;
            }
        }
    }
}

Answer 1

Once you have loaded the document to a DOMDocument instance, you can use XPath queries on it — which might be easier than going yourself through the DOM.

For that, you can use the DOMXpath class.

For example, you should be able to do something like this :

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

$xpath = new DOMXPath($dom);
$tags = $xpath->query('//div[@class="text"]');
foreach ($tags as $tag) {
    var_dump($tag->textContent);
}

(Not tested, so you might need to adapt the XPath query a bit…)