Get the customer ID from an order ID in WooCommerce - php

Question

I want to get the "mycred" balance of a customer through the order while using WP ALL Export to export the customer balance based on orders to a spreadsheet. It's actually probably quite simple. I'm able to get the Order ID, but not the Customer ID
Here is what I'm doing to test if I can get the customer ID:
function get_customeruserid($value)
{
global $woocommerce, $post;
$order = new WC_Order($post->ID);
$order_id = $order->get_order_number();
$customer = new WC_Customer($post->ID);
$user_id = $customer->get_ID();
$value = $user_id;
return $value;
}
This returns a 0.
However, I can get the order number easily enough by doing this:
function get_customerorderid($value)
{
global $woocommerce, $post;
$order = new WC_Order($post->ID);
$order_id = $order->get_order_number();
$value = $order_id;
return $value;
}
This returns the customer's order number which is great, but only half the battle. I now want the Customer ID so I call call the mycred balance function to show their balance.
Any ideas? I'm a newbie at php and probably very bad.

Answer 1

To get the User ID from the Order ID, you can use many ways, Here are 2 of them:
In WooCommerce 3.0+ you can use WC_Order Class methods this way:
function get_customerorderid(){
global $order, $post;
if( ! is_a($order, 'WC_Order') ) {
$order_id = $post->ID;
// Get an instance of the WC_Order object
$order = wc_get_order($order_id);
} else {
$order_id = $order->id;
}
// Get the user ID from WC_Order methods
$user_id = $order->get_user_id(); // or $order->get_customer_id();
return $user_id;
}
Before WooCommerce 3.0 version, you can use get_post_meta() function this way:
function get_customerorderid(){
global $order, $post;
if( ! is_a($order, 'WC_Order') ) {
$order_id = $post->ID;
} else {
$order_id = $order->id;
}
// Get the user ID
$user_id = get_post_meta($order_id, '_customer_user', true);
return $user_id;
}

Answer 2

For those who want to specifically add the customer mycred balance from an ORDER into the CSV sheet within WP All Export here is the bit of code I used.
Thank you for your help getting it solved.
While editing an ORDER export in WP ALL EXPORT, add a new data object and click on it and "Export the value returned by a PHP function" then add the following function in the code editor:
function all_export_mycred($balance)
{
global $woocommerce, $post;
$order = new WC_Order($post->ID);
$user_id = $order->get_user_id( );
$balance = mycred_get_users_balance( $user_id );
return $balance;
}
Then make sure to add the "all_export_mycred" to the php return field.