Get Element by ClassName with DOMdocument() Method

user_1007015 0
Viewed 69147

Here is what I am trying to achieve : retrieve all products on a page and put them into an array. Here is the code I am using :

$page2 = curl_exec($ch);
$doc = new DOMDocument();
@$doc->loadHTML($page2);
$nodes = $doc->getElementsByTagName('title');
$noders = $doc->getElementsByClassName('productImage');
$title = $nodes->item(0)->nodeValue;
$product = $noders->item(0)->imageObject.src;

It works for the $title but not for the product. For info, in the HTML code the img tag looks like this : 

<img alt="" class="productImage" data-altimages="" src="xxxx">

I have been looking at this (PHP DOMDocument how to get element?) but I still don't understand how to make it work.

PS : I get this error :

Call to undefined method DOMDocument::getElementsByclassName()

domdocument curl php
3 Answers
function getElementsByClassName($dom, $ClassName, $tagName=null) {
    if($tagName){
        $Elements = $dom->getElementsByTagName($tagName);
    }else {
        $Elements = $dom->getElementsByTagName("*");
    }
    $Matched = array();
    for($i=0;$i<$Elements->length;$i++) {
        if($Elements->item($i)->attributes->getNamedItem('class')){
            if($Elements->item($i)->attributes->getNamedItem('class')->nodeValue == $ClassName) {
                $Matched[]=$Elements->item($i);
            }
        }
    }
    return $Matched;
}

// usage

    $dom = new \DOMDocument('1.0'); 
    @$dom->loadHTML($html);
    $elementsByClass = getElementsByClassName($dom, $className, 'h1');
user_66593650
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