Add multiple categories to body class Wordpress

3
votes

I have found some code which adds the category as a class to the body here: https://css-tricks.com/snippets/wordpress/add-category-name-body_class/ but it only seems to add one category. Does anyone know how to adjust this code so that it can add multiple category classes to the body?

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) {
      // add category slug to the $classes array
      $classes[] = $category->category_nicename;
    }
  }
  // return the $classes array
  return $classes;
}
2
wordpress
At first sight your code looks good. Just to confirm, does your post have more than 1 category assigned? – Mithc
The code looks fine, it should be adding multiple categories to the class. Are you sure that the post is in multiple categories? What do you get if you do a var_dump on (get_the_category($post->ID))? – FluffyKitten
The solution by Aaron below worked a treat, but thank you for your input! – siaeva

2 Answers

1
votes

SOLUTION

You can add this code to your custom functions.php file:

function add_categories( $classes = '' ) {

    $categories = get_the_category();
    foreach( $categories as $category ) {
    $classes[] = 'category-'.$category->slug;


}
 return $classes;
}
add_filter( 'body_class', 'add_categories' );
0
votes

add this code to your functions.php file or visit https://urlzs.com/nESor

<?php// extend body_class function 
add_filter('body_class','add_category_to_single');
// create custom function for add class to body element
function add_category_to_single($classes) {
  if (is_single() ) {
    global $post;
    foreach((get_the_category($post->ID)) as $category) {
       // add category slug to the $classes array
      $classes[] = $category->category_nicename;
    }
  }
  // return the $classes array
  return $classes;
}?>