Customizes the Paid Memberships Pro no access message for members and non-members.

my-pmpro-custom-require-message.php

<?php // do not copy this line.
/**
 * This recipe changes the Restricted Content Message and button 
 * depending on whether the viewer is a member or not.
 *
 * 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_pmpro_custom_no_access_message_members_upgrade_nonmembers_join( $body, $level_ids ) {
	global $pmpro_pages;

	if ( pmpro_hasMembershipLevel() ) {
		// Logged-in members who already have a membership level.

		// You can change the message text below.
		$body  = '<p><strong>You must upgrade your membership to access this content.</strong></p>';
		$body .= '<p>This content is available to higher-level members. You can review upgrade options here:</p>';

		// You can change the button text ("Upgrade Now") or the link (currently goes to Levels page).
		$body .= '<p><a href="' . esc_url( pmpro_url( 'levels' ) ) . '" class="pmpro_btn pmpro_btn-primary">Upgrade Now</a></p>';

	} else {
		// Guests or non-members (no active membership).

		// You can change the message text below.
		$body  = '<p><strong>You must be a member to access this content.</strong></p>';

		// !!levels!! dynamically inserts the list of levels required for access.
		$body .= '<p>!!levels!!</p>';

		// You can change the button text ("Join Now") or link (currently goes to Levels page).
		$body .= '<p><a href="' . esc_url( pmpro_url( 'levels' ) ) . '" class="pmpro_btn pmpro_btn-primary">Join Now</a></p>';
	}

	return $body;
}
add_filter( 'pmpro_no_access_message_body', 'my_pmpro_custom_no_access_message_members_upgrade_nonmembers_join', 10, 2 );