Woocommerce订阅-获取开始日期

Question

我正在尝试创建一个函数来返回用户订阅的开始日期。我正在使用woocommerce和订阅插件。

我让这段代码正常工作，然而，它在我的debug.log中返回了一个"depreciated“错误--而且加载速度也非常慢：

function subscriber_start_date() {
    global $current_user;
    $user = wp_get_current_user();
    // Set start date to initial value
    $start_date = FALSE;
    // Get ALL subscriptions
    $subscriptions = WC_Subscriptions_Manager::get_users_subscriptions( $user->ID );
    $subscriptions = wcs_get_users_subscriptions( $user->ID );
    if ($subscriptions) {
        // Get the first subscription
        $subscription = array_shift($subscriptions);
        // Get the start date, if set
        $start_date = (isset($subscription['start_date'])) ? $subscription['start_date'] : FALSE;
    }

    return $start_date;
}

在搜索了一下之后，我在文档中发现了这个函数：

WC_Subscription::get_date( 'start' );

但这也给了我一些错误，如下所示：

PHP Strict Standards:  Non-static method WC_Subscription::get_date() should not be called statically in /home/skizzar/public_html/wp-content/plugins/lessons-extension/includes/ls-helpers.php on line 28
PHP Notice:  WC_Subscription::get_date was called with an argument that is <strong>deprecated</strong> since version 2.2.0! The &quot;start&quot; date type parameter has been deprecated to align date types with improvements to date APIs in WooCommerce 3.0, specifically the introduction of a new &quot;date_created&quot; API. Use &quot;date_created&quot; in /home/skizzar/public_html/wp-includes/functions.php on line 4023
PHP Fatal error:  Using $this when not in object context in /home/skizzar/public_html/wp-content/plugins/woocommerce-subscriptions/includes/class-wc-subscription.php on line 948

有没有一种简单的方法来获取我错过的订阅开始日期？

更新:当使用'date_created‘而不是'start’时，我得到了以下错误：

PHP Strict Standards:  Non-static method WC_Subscription::get_date() should not be called statically in /home/skizzar/public_html/wp-content/plugins/lessons-extension/includes/ls-helpers.php on line 28
PHP Fatal error:  Using $this when not in object context in /home/skizzar/public_html/wp-content/plugins/woocommerce-subscriptions/includes/class-wc-subscription.php on line 948

Answer 1

您必须循环访问订阅数组：

$subscriptions = wcs_get_users_subscriptions( $user->ID ); foreach ($subscriptions as $sub)

并获得如下的订阅对象：

$subscription = wcs_get_subscription( $sub->ID );

只有这样，您才能通过函数获取日期，例如：

$subscription->get_date( 'start' );