<?php
    if(!empty($_POST)) {
         try {
            $pdo = new PDO('mysql:host=localhost;dbname=RussianStair', 'root', '', [PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION]);
            $query = "SELECT name, referrence, price FROM storage WHERE material LIKE '%beech%' AND app LIKE '%forSmallRooms%' AND construct LIKE '%screw%' AND tech LIKE '%onRails%' AND class LIKE '%premium%' AND brand LIKE '%Ladder%';";
            $statement = $pdo->query($query);
            $responce = "";
            while($result = $statement->fetch(PDO::FETCH_CLASS)) {
                $responce .= <<<METKA
                    <section role="option">
                        <figure style="background: url('{$result['referrence']}') center center / cover no-repeat">
                            <figcaption>{$result['name']}</figcaption>
                        </figure>
                        <span>{$result['price']}</span>
                    </section>
METKA;
            }
            echo $responce;
         } catch(PDOException $e) {
            header("HTTP/1.1 500 Internal ServerError");
            echo "".$e->getMessage();
         }
    }
    else {
        header("HTTP/1.1 400 Bad Request");
        echo "Данные не корректны, повторите отправку данных еще раз";
    }
?>