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Limit Number of Classes When Using post_class

Snippets by IsItWP

There’ll be many classes that comes with the post_class. You may want to limit number of classes when using post_class in WordPress.

Instructions: Add the following code to the functions.php file of your WordPress theme.

    function wps_category_id_class($classes) {
        global $post;
        foreach((get_the_category($post->ID)) as $category)
            $classes[] = $category->category_nicename;
            return array_slice($classes, 0,5); // default set to 5
    }
    add_filter('post_class', 'wps_category_id_class');

You may also enjoy removing CSS classes from menus, except the ones you want.

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