Give user's access to all content on an Addon Packages Page if purchased. Includes PMPro [membership] shortcode.

pmpro-ap-give-shortcode-access.php

<?php
/**
 * Give's users that purchase an Addon Package access to shortcodes that aren't for their level.
 * User's with level 1, will gain access to all content on a purchased Addon Package item such as [membership level="2"]This content[/membership]
 *
 * You can add this recipe to your site by creating a custom plugin
 * or using the Code Snippets plugin available for free in the WordPress repository.
 * Read this companion article for step-by-step directions on either method.
 * https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */

function my_pmproap_pmpro_member_shortcode_access( $hasaccess, $content, $levels, $delay ) {

    if ( ! is_user_logged_in() ) {
        return $hasaccess;
    }

    global $current_user, $post;

    if ( pmproap_isPostLocked( $post->ID ) ) {
        // okay check if the user has access
        if ( pmproap_hasAccess( $current_user->ID, $post->ID ) ) {
            $hasaccess = true;
        } else {
            $hasaccess = false;
        }
    }

	return $hasaccess;
}

add_filter( 'pmpro_member_shortcode_access', 'my_pmproap_pmpro_member_shortcode_access', 10, 4 );