简单的MySQL查询问题

Question

我正在将rss feed插入到mysql中，例如：

    $rss_url = 'https://grabo.bg/rss/exportxml/stolicabg/?affid=50781';
    $xml = simplexml_load_file($rss_url);
    foreach($xml->deal as $item) {
        $title = htmlspecialchars($item->title);
        //$websiteUrl = $item->WEB;
        $offerUrl = $item->url;
        $description = htmlspecialchars($item->description);
        $offerTerms = htmlspecialchars($item->terms);
        $originalPrice = $item->price_regular;
        $finalPrice = $item->price;
        $offerDiscount = $item->price_discount;
        //$offerSales = $item->SALES;
        $offerEnds = $item->expire;
        $lat_coordinates = $item->addresses->address->lat;
        $lng_coordinates = $item->addresses->address->lng;
        $adress = htmlspecialchars($item->addresses->address->addr);
        $hood = htmlspecialchars($item->addresses->address->section);
        $company = htmlspecialchars($item->company);
        //$category = utf8_encode($item->categories->category);
        $category = htmlspecialchars($item->categories->category);
        $img = $item->image;

        mysqli_set_charset($link, 'utf8mb4');

        $query = mysqli_query($link, "
        INSERT INTO `offers` (offerName, offerImgUrl, offerUrl, OfferDetails, offerTerms,
        offerRegularPrice, offerDiscount, offerFinalPrice,
        offerCategory, offerExpires, offerCompany, offerCity, 
        offerNeighbourhood) 
        VALUES ('$title', '$img', '$offerUrl', '$description',  
        '$offerTerms', '$originalPrice', '$offerDiscount',
        '$finalPrice', '$category', '$offerEnds',
        '$company', '$adress', '$hood')") or die(mysqli_error($link));      
        }

当我运行脚本时，它会从Feed中添加6个结果并返回错误：

  

您的SQL语法有错误；请查看与您的MariaDB服务器版本相对应的手册，以获取在第5行的's Vision</b> и се радвайте на перфектна визия! '附近使用正确的语法

我认为特殊字符有问题，但添加了htmlspecialchars函数，并且无法再次使用。