rewrite.php

<?php

namespace IOCDF;

/**
 * Rewrite post URLs that have a /news/%postname%/ structure
 */
function rewrite_post_urls() {

	add_rewrite_rule('^blog/([0-9]{4})/([0-9]{1,2})/([0-9]{1,2})/([^/]+)/?', 'index.php?/blog/year=$matches[1]&monthnum=$matches[2]&day=$matches[3]&postname=$matches[4]', 'top');

}
add_action('init', '\IOCDF\rewrite_post_urls');