Display a slider of related posts at the bottom of a post. Posts are filtered by both tags and categories.

gistfile1.txt

/*
* Woo Related posts slider hooked on woo_post_after
*/
 
function woo_related_posts_slider() {
    global $post;
 
    if( is_single() ){
    
        $extra_args = array();
        
        $terms_tags = get_the_terms( $post->ID, 'post_tag' );
        $count = 0;
 
        if ( !empty( $terms_tags ) ) {
            $extra_args['tag'] = '';
            foreach( $terms_tags as $k => $v) {
                $count++;
                if ( $count > 1 ) {
                    $extra_args['tag'] .= '+';
                }
                $extra_args['tag'] .= esc_attr($v->slug);
            }
        }
        
        $terms_categories = get_the_terms( $post->ID, 'category' );
        $count = 0;
 
        if ( !empty( $terms_categories ) ) {
            $extra_args['category'] = '';
            foreach ( $terms_categories as $k => $v ) {
                $count++;
                if ( $count > 1 ) {
                    $extra_args['category'] .= ',';
                }
                $extra_args['category'] .= esc_attr( $v->slug );
            }
        }
        
        $extra_args['link_title'] = 'true';
        $extra_args['limit'] = '6';
        $extra_args['overlay'] = 'full';
        $extra_args['layout'] = 'text-bottom';
        
        
        wooslider( array( 'slider_type' => 'posts', 'smoothheight' => 'true', 'randomize' => 'true' ), $extra_args );
    }
}
 
 
add_action( 'woo_post_after', 'woo_related_posts_slider' );