小编Ric*_* Ng的帖子

我试图检查按钮标签是否被点击，然后执行该语句，但它似乎不起作用。我错过了什么或做错了什么吗？非常感谢。

if (isset($_POST['appetizer_button'])) {
    $results = $mysqli->query("SELECT * FROM products ORDER BY id ASC");

    if ($results) { 
        //fetch results set as object and output HTML
        while($obj = $results->fetch_object()) {
            echo '<div class="product">'; 
            echo '<form method="post" action="cart_update.php">';
            // echo '<div class="product-thumb"><img src="images/'.$obj->product_img_name.'"></div>';
            echo '<div class="product-content"><h3>'.$obj->product_name.'</h3>';
            echo '<div class="product-desc">'.$obj->product_desc.'</div>';
            echo '<div class="product-info">';
            echo 'Price '.$currency.$obj->price.' | ';
            echo 'Qty <input type="text" name="product_qty" value="1" size="3" />';
            echo '<button class="add_to_cart">Add To Cart</button>';
            echo '</div></div>';
            echo '<input type="hidden" name="product_code" value="'.$obj->product_code.'" />';
            echo '<input type="hidden" name="type" …