$html = file_get_contents('https://tv-sewingcenter.com');
$dom = new DOMDocument;
libxml_use_internal_errors(true);
$dom->loadHTML($html);
$scripts = $dom->getElementsByTagName('script');
if( ! empty( $scripts ) )
{
    foreach( $scripts as $script )
    {
        if( $script->hasAttribute('type') && $script->getAttribute('type') == 'application/ld+json' )
        {
            echo $script->nodeValue;
        }
    }
}