In WooCommerce, you can get the order ID using various methods depending on the context in which you need it. Here are a few common ways to retrieve the order ID:

From Order Object: If you’re working within a WooCommerce loop or function that already has access to the order object, you can simply use the get_id() method to retrieve the order ID.

For example:

$order = wc_get_order( $order_id ); // Replace $order_id with the actual order ID
$order_id = $order->get_id();

From Order Data: If you have access to order data, such as an order array, you can extract the order ID directly from the data. For example:

$order_id = $order_data[‘order_id’]; // Replace $order_data with the actual order data array
From Order Query: If you need to retrieve the order ID programmatically, you can query WooCommerce orders using the WC_Order_Query class. For example:

$args = array(
‘status’ => ‘completed’,
‘limit’ => 1,
);
$orders = wc_get_orders( $args );
if ( ! empty( $orders ) ) {
$order_id = $orders[0]->get_id();
}

From Order Meta: If you have the order meta data, you can retrieve the order ID from the meta using functions like get_post_meta(). For example:

$order_id = get_post_meta( $order_post_id, ‘_order_id’, true ); // Replace $order_post_id with the actual order post ID

These are just a few examples of how you can retrieve the order ID in WooCommerce. The method you choose will depend on the specific requirements of your code and the context in which you’re working.