Site URL placeholder in event formats

<?php
/**
 * This snippet replaces #_SITEURL with the URL of the site in event formats.
 * For installation instructions, see here - http://wp-events-plugin.com/tutorials/how-to-safely-add-php-code-to-wordpress/
 */
function my_em_site_url_placeholder($replace, $EM_Category, $result){
    switch( $result ){
        case '#_SITEURL':
            $replace = get_site_url();
            break;
    }
    return $replace;
}
add_filter('em_event_output_placeholder','my_em_site_url_placeholder',1,3);