Echo meta-description

Hello guys!

I wanna echo the meta-description like it’s described here: https://ww.wp.xz.cn/support/topic/echo-php-meta-description-from-the-seo-framework/

Did anything change since then? Couldn’t make it work unfortunately.

I’d need it in this format too: <?php echo get_???(); ?>

As I’m not an expert in coding, how would it look like exactly?

Thank you!