<?php
    public function prepQuery($syntax, $data) {
            $q = $this->conn->prepare($syntax);
            $q->execute($data);

            return $q->fetchAll();
        }

    $artikel = 10;
    $query = "SELECT * FROM `weerinwoord` WHERE `id` = ?";
    $data = array($artikel);
    $uitvoer = $db->prepQuery($query, $data);
?>