Display extra content at the top of the customer portal pane.

fullstripe_customer_portal_header_v6-2.php

<?php
/**
 * A 'fullstripe_customer_portal_header' filter hook example for WP Full Stripe.
 *
 * @param string $content Header content set by a previous filter instance.
 * @param array $params with the following keys:
 *   email               => Email address of the logged-in customer 
 *   stripeCustomerId    => Stripe customer id of the logged-in customer
 *   stripeClient        => Instance of the \StripeWPFS\StripeClient object, intialized in the API mode selected in the plugin's settings 
 *
 * @return string Filtered content
 */
 
function customerPortalHeader( $headerContent, $params ) {
    $email            = $params['email'];
    $stripeCustomerId = $params['stripeCustomerId'];
    $stripeClient     = $params['stripeClient'];
    $headerContent .= '<h3>Header</h3>';
    $headerContent .= '<p>Email: ' . $email . '</p>';
    $headerContent .= '<p>stripeCustomerId: ' . $stripeCustomerId . '</p>';

    return $headerContent;
}

add_filter( 'fullstripe_customer_portal_header', 'customerPortalHeader', 10, 2 );