将数组键值追加到会话数组

Question

想要将键和值附加到已创建的会话。

if (!isset($_SESSION['cart'])) {
                $bag = array(
                        "sessionId" => session_id(),
                        "productId" => $productId, 
                        "size"      => $productSize,
                        "quantity"  => $productQuantity
                    );
                $_SESSION['cart'] = $bag;
            } else {
                $_SESSION['cart']['sessionId'] = session_id();
                $_SESSION['cart']['productId'] = $productId;
                $_SESSION['cart']['size'] = $productSize;
                $_SESSION['cart']['quantity'] = $productQuantity;
            }

如果已创建会话，则将新变量及其键附加到会话中。

Answer 1

$_SESSION['cart']应该是一个项目数组，而不是你编写的单个项目。每个项目都将是一个单独的关联数组，您可以将其推送到购物车数组上。

if (!isset($_SESSION['cart'])) {
    $_SESSION['cart'] = array();
}
$bag = array(
    "sessionId" => session_id(),
    "productId" => $productId, 
    "size"      => $productSize,
    "quantity"  => $productQuantity
);
$_SESSION['cart'][] = $bag;