related_articles.php

  <!-- Related Posts -->
  <?php
  $tags = wp_get_post_tags( get_the_ID() );
  $the_tags = null;

  foreach ( $tags as $tag ) :

      $the_tags[] = $tag->slug;

  endforeach;

  // WP_Query arguments
  $args = array (
      'post_type' => array ( 'post' ),
      'post_status' => array ( 'publish' ),
      'tag_slug__in' => $the_tags,
      'post__not_in' => array ( get_the_ID() )
  );

  // The Query
  $related = new WP_Query( $args );


  if ( $related->have_posts() ) :

      $ctr = 0;
      echo '<h3>Related Posts</h3>';

      while ( $related->have_posts() ) :

          $ctr++;

          if ( $ctr > 3 ) :
              break;
          endif;


          $related->the_post();
          
          $category = get_the_category();
          ?>


          <div class="blogroll-post row related-post">

              <div class="background col-sm-5" 
                   style="background-image: url(<?php echo wp_get_attachment_url( get_post_thumbnail_id( get_the_ID() ) ); ?>)"></div>

              <div class="col-sm-7">
                  <h2 class="title">

                      <a href="<?php echo the_permalink(); ?>">
                          <?php echo the_title(); ?>
                      </a>

                      <a class="category category-<?php echo $category[0]->cat_ID; ?>" href="<?php echo get_category_link( $category[ 0 ]->cat_ID ); ?>">In <?php echo $category[ 0 ]->name ?></a>

                      <div>
                          <span class="author-by">By </span><span class="author"><?php the_author(); ?></span> 
                          <span class="time"> | <?php echo human_time_diff( get_the_time( 'U' ), current_time( 'timestamp' ) ) . ' ago'; ?></span>

                          <?php $duration = get_post_meta( get_the_ID(), 'post_duration_mintues', True ); ?>
                          <?php if ( $duration ) : ?>
                              <span class="length">| <?php echo get_post_meta( get_the_ID(), 'post_duration_mintues', True ); ?> min read</span> 
                          <?php endif; ?>
                      </div>								

                      <div class="clear"></div>


                  </h2>
              </div>

          </div>


          <?php
      endwhile;
  else :
      // no posts found
      
  endif;

  // Restore original Post Data
  wp_reset_postdata();