Change Set Expiration Date value for existing members/renewals

change-set-expiration-date-pmpro-renewal.php

<?php
/**
 * Changes the Y-M-D value for existing members when using the Set Expiration Date Add On.
 * Allows you to extend renewal dates for Set Expiration Dates Add On.
 * Add this code to your site by following this guide - https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */

function my_pmpro_change_set_expiration_renewal_date( $date ) {
    if ( ! function_exists( 'pmpro_getSetExpirationDate' ) ) {
        return $date; // Ensure the function exists before using.
    }

    global $pmpro_pages;

    // Only change it on the checkout page.
    if ( ! isset( $pmpro_pages['checkout'] ) || ! is_page( $pmpro_pages['checkout'] ) ) {
        return $date;
    }

    $user_id = get_current_user_id();
    if ( empty( $user_id ) ) {
        return $date; // No user ID, likely a new user.
    }

    $user_level = pmpro_getMembershipLevelForUser( $user_id );

    // Only update if the user has a membership level and it has a set expiration date.
    if ( ! empty( $user_level ) && pmpro_getSetExpirationDate( $user_level->id ) ) {
        $date = date( 'Y-06-13', strtotime( 'next year' ) ); // Set expiration date to June 13 of next year.
    }

    return $date;
}
add_filter( 'pmprosed_expiration_date_raw', 'my_pmpro_change_set_expiration_renewal_date', 10, 1 );