profitmag-child

function profitmag_related_post( $post_id ) {
        $categories = get_the_category( $post_id );    
        if( $categories ) {
            $category_ids = array();
            foreach( $categories as $category ) {
                $category_ids[] = $category->term_id;
            }
            $args = array(
                'category__in' => $category_ids,
                'post__not_in' => array( $post_id ),
                'posts_per_page' => 4,                                
                );
            $related_query = new WP_Query( $args );
            if( $related_query->have_posts() ) {
                echo '<ul>';
                while( $related_query->have_posts()){
                    $related_query->the_post();
                    ?>                
                    <li><a href="<?php the_permalink(); ?>" title="<?php the_title_attribute(); ?>"><?php the_title(); ?></a></li> 

                    <?php                
                }
                echo '</ul>'; 
                ?>    
                <?php           
            }else {
                ?>
                <ul><li><?php _e( 'No related post.', 'profitmag'); ?></li></ul>
                <?php            
            }
            wp_reset_postdata();          
        }
    }