PHP Code showing up on blog post

This code is showing up under my title:

array(8) { [“showposts”]=> int(6) [“post_status”]=> string(7) “publish” [“ignore_sticky_posts”]=> int(1) [“orderby”]=> string(4) “rand” [“order”]=> string(4) “DESC” [“category__in”]=> string(0) “” [“category__not_in”]=> array(0) { } [“post__not_in”]=> array(1) { [0]=> int(1647) } }

you can see it here: https:// athleticmuscle.net/c2b-pull-ups/

How can I fix this and find out what caused it??

Thanks for the help!