Get instagram HTML [closed]

I have this code, but the file_get_contents does not work correctly.

  $html = file_get_contents('https://www.instagram.com/');


    $dom = new domDocument();
    $dom->loadHTML($html);
    $dom->preserveWhiteSpace = false;
    $images = $dom->getElementsByTagName('img');
    foreach ($images as $image) {
        $img_id =  $image->getAttribute('id');

        if($img_id == 'hi_2') {
            echo $image->getAttribute('src');

        }
    }

Thanks for the help!