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Add post category to body_class on single posts

NextGen gallery

This little snippet will take all the categories assigned to a post and add them to the body_class "sgl-cat-{category-name}".



Code Snippet:


add_filter('body_class','add_category_to_single');
function add_category_to_single($classes, $class) {
if (is_single() ) {
global $post;
foreach((get_the_category($post->ID)) as $category) {
$classes[] = 'sgl-cat-'.$category->category_nicename;
}
}
return $classes;
}

Comments  Leave a Reply

  1. Great, but you need one correction or the above code will give a fatal error. The hook should have:
    add_filter(‘body_class’,’add_category_to_single’,10,2) since you pass in 2 parameters.

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