Breadcrumbs

in yoast SEO, it says to enter `<?php if ( function_exists(‘yoast_breadcrumb’) ) {
yoast_breadcrumb(‘<p id=”breadcrumbs”>’,'</p>’);
} ?>`
as it is not a blog post, what php file would that go into?

and what would Taxonomy to show in breadcrumbs for: be?
if it works using EM that is?

http://wordpress.org/plugins/events-manager/