An example template that uses the pmpro_has_membership_access function to protect content.

my-custom-page-template.php

<?php
/**
 * Template Name: My Custom Template
 *
 * An example template that uses the pmpro_has_membership_access function to protect content.
 *
 */

get_header(); ?>

<main id="main" class="site-main" role="main">
	<?php while ( have_posts() ) : the_post(); ?>
		<?php
			// Check if the user has access.
			$hasaccess = pmpro_has_membership_access( $post->ID, null, true );
			if ( ! empty( $hasaccess[0] ) ) {
				// The user has access, show the custom template content or page content.
				echo $post->post_content;
			} else {
				// If the user doesn't have access, show the pmpro_get_no_access_message.
				echo pmpro_get_no_access_message( '', $hasaccess[1], $hasaccess[2] );
			}
		?>
	<?php endwhile; ?>
</main><!-- #main -->

<?php get_footer(); ?>