Show icon based on level access and posts

show-icon-based-on-membership-access.php

<?php
/**
 * This will add an image to the top of each post based on if a user has access to that post or not.
 * Add the code below to your PMPro Customizations Plugin - https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */
 
 function show_icon_based_on_membership_access( $hasaccess, $thepost, $theuser, $post_membership_levels ) {

	if ( ! empty( $post_membership_levels ) ) {
		// check if the user has access for a restricted post.
		if ( $hasaccess ) {
			add_filter( 'the_content', 'my_content_filter_members' );
		} else {
			// let's filter the content message
			add_filter( 'the_content', 'my_content_filter_non_members' );
		}
	}

	return $hasaccess;

}
add_filter( "pmpro_has_membership_access_filter", "show_icon_based_on_membership_access", 10, 4 );

function my_content_filter_non_members( $content ) {
	$content = '<img src="link-to-icon-for-members" />' . $content;

	return $content;
}

function my_content_filter_members( $content ) {
	$content = '<img src="link-to-icon-for-members" />' . $content;

	return $content;
}