WooCommerce类WC_Cart可工作，但不能更改登录用户的购物车

Question

处理非空车时遇到一些问题。

我的目标是在用户登录时清空购物车。

我创建了一个看起来与WP登录挂钩的插件。

它似乎完全按照购物车查询命令的输出执行了我想要的操作，但是用户WC购物车中仍然有内容。

这是我的插件代码：

 FileNotFoundError: [Errno 2] No such file or directory: "/Users/user/'store_name'{}"

脚本输出

function WPLoginAction() {

    $myfile = fopen("/home3/fitnevq7/public_html/scriptlogs/wploginnew", "w");

    $txt = "wp login start \n";

    fwrite($myfile, $txt);

    $ISEmpty = WC()->cart->is_empty();

    $txt = "is Cart empty before = " . $ISEmpty . "\n";

    fwrite($myfile, $txt);

    $count= WC()->cart->get_cart_contents_count();

    $txt = "var count = " . $count . "\n";

    fwrite($myfile, $txt);

    global $woocommerce;

    $var = $woocommerce->cart->empty_cart(true);


    $txt = "var result = " . $var . "\n";

    fwrite($myfile, $txt);

    $count= WC()->cart->get_cart_contents_count();

    $txt = "var count after delete  = " . $count . "\n";

    fwrite($myfile, $txt);

    $ISEmpty = WC()->cart->is_empty();

    $txt = "is Cart empty after = " . $ISEmpty . "\n";

    fwrite($myfile, $txt); 
}
add_action('login_enqueue_scripts', 'WPLoginAction');


}

这表明脚本正在运行，但是WC购物车仍通过GUI显示一个项目。

请注意，我还使用下面的两行代码创建了一个WP页面，并且该页面运行正常。

wp login start 
is Cart empty before = 
var count = 1
var result = 
var count after delete  = 0
is Cart empty after = 1