Add Member Notes to the PMPro Members List CSV Export

my-pmpro-members-list-csv-member-notes.php

<?php
/**
 * Add Member Notes (user_notes) to the PMPro Members List CSV export.
 *
 * This recipe adds a new "Member Notes" column to the CSV
 * and populates it from the user meta key `user_notes`.
 *
 * 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.
 * https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */

/**
 * Register the extra CSV column.
 */
function my_pmpro_members_list_csv_extra_columns( $columns ) {
	$columns['member_notes'] = 'my_pmpro_members_list_member_notes';
	return $columns;
}
add_filter( 'pmpro_members_list_csv_extra_columns', 'my_pmpro_members_list_csv_extra_columns' );

/**
 * Populate the Member Notes column.
 *
 * @param WP_User $user The user object for the row.
 * @return string Sanitized member notes.
 */
function my_pmpro_members_list_member_notes( $user ) {
	$notes = get_user_meta( $user->ID, 'user_notes', true );

	if ( empty( $notes ) ) {
		return '';
	}

	return wp_strip_all_tags( $notes );
}