Get spesific infos from another website with php

I try to get some infos from another website and ı can get product name but ı can’t get Stock Name.

this is the website div element whichone is ı want to get infos

<div class="col-xl-5 offset-xl-1 col-lg-6 order-3">
            <div class="product-right">
                <div class="product-brand">
                     <a href="/marka/kaly">Kaly</a>
                    </div>
                    <div class="product-title">
                     <h1>Yamaha MT 25 Stop Komple Ledli Bluetoothlu (Kayar Sinyalli)</h1>
                    </div>
                    <div class="product-sku">Stok Kodu : KM11855-B04</div>
                                                                                                                                        
                    <div class="product-price">
                        <div class="price-text">
                            <div class="product-price-old">
                                2.550,30 <span>₺</span>
                            </div>
                        </div>
                    </div>

I can get product-band ‘kaly’ with this code :

 $urun_parcala=explode('<a href="/marka/',$site);
    $urun_parcala2=explode('"',$urun_parcala[1]);
    return $urun_parcala2[1];

but I cant get product-sku with this code :

 $fgc_urun=file_get_contents("https://www.kalyoncumotor.com/urun/yamaha-mt-25-stop-komple-ledli-kayar-sinyalli");
    $urun_parcala=explode('<div class="product-sku">',$fgc_urun);
    $urun_parcala2=explode('</d',$urun_parcala[0]);
     print_r($urun_parcala2);