PHP Button Custom link [closed]

I’m not sure what byt_render_link_button() does, but I try this.

<?php 
byt_render_field("description clearfix", "", "", $accommodation_description_html, '', false, true);
if (!empty($current_url) && $current_url == $list_user_accommodations_url) {
     byt_render_link_button($submit_accommodations_url . '?fesid=' . $accommodation_id, "gradient-button clearfix", "", __('Edit', 'bookyourtravel'));   
} else {
     byt_render_link_button( 'http://www.mywebsite.com', "gradient-button clearfix", "", __('Book now', 'bookyourtravel') );
}