Where is the data stored for custom fields in WooCommerce/Wordpress

I have a plugin that adds custom fields to the WooCommerce account page. Take the apikey field below as an example (this is just a random field, it could be anything)

add_action( 'woocommerce_edit_account_form', 'add_api_info_to_account_form' );
function add_api_info_to_account_form() {
  $user = wp_get_current_user();
  ?>
  <fieldset>
    <legend><?php esc_html_e( 'GHL/MBO Sync', 'woocommerce' ); ?></legend>

    <p class="woocommerce-form-row woocommerce-form-row--wide form-row form-row-wide">
        <label for="apikey"><?php _e( 'MBO API Key', 'woocommerce' ); ?></label>
        <input type="text" class="woocommerce-Input woocommerce-Input--text input-text" 
         name="apikey" id="apikey" value="<?php echo esc_attr( $user->apikey ); ?>" />
    </p>

Whenever I go to the profile page, I see that the value $user->apikey is loaded from wp_get_current_user()

However, in my other file, I’m trying to access every user’s API key using get_users(), and the apikey information is not returned.

Is there a way to return custom fields like this with an array of all users?

Here’s the code from the second file:

$users = get_users();
print_r($users);

it returns a big array, but no apikey field

Answer

Welcome to stackoverflow, TO load a user meta (custom field) you need ot use this function get_user_meta($user_id, $meta_key ).

So to put it simple, to get the user API key to use this line

global $current_user; 
$user_api_key = get_user_meta($current_user->id, 'apikey' );

You can place $user_api_key anywhere you want to display the apikey. Please try this out and let me know if it works for you. I’m here to help.

Where is the data stored for custom fields in WooCommerce/WordPress

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Answer