Custom function to add custom sql search where clause to the member directory search query

custom_pmpro_member_directory_sql_search_where.php

<?php
/**
 *  Custom function to add custom sql search where clause to the member directory search query
 *
 * 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 custom_pmpro_member_directory_sql_search_where( $sql_search_where, $search_term ) {
	
	//write your custom sql search where here
	$custom_sql_search_where = "";
	return $custom_sql_search_where;
}
   
   
   
add_filter( "pmpro_member_directory_sql_search_where", "custom_pmpro_member_directory_sql_search_where", 10, 2 );