/**
 * Code bai viet lien quan cuoi moi bai trong AMP thay so 7 bang so ban muon
 */
 function my_amp_related_posts( $count = 7 ) {
    global $post;
    $taxs = get_object_taxonomies( $post );
    if ( ! $taxs ) {
        return;
    }
    // ignoring post formats
    if( ( $key = array_search( 'post_format', $taxs ) ) !== false ) {
        unset( $taxs[$key] );
    }
    // try tags first
    if ( ( $tag_key = array_search( 'post_tag', $taxs ) ) !== false ) {
        $tax = 'post_tag';
        $tax_term_ids = wp_get_object_terms( $post->ID, $tax, array( 'fields' => 'ids' ) );
    }
    // if no tags, then by cat or custom tax
    if ( empty( $tax_term_ids ) ) {
        // remove post_tag to leave only the category or custom tax
        if ( $tag_key !== false ) {
            unset( $taxs[ $tag_key ] );
            $taxs = array_values($taxs);
        }

        $tax = $taxs[0];
        $tax_term_ids = wp_get_object_terms( $post->ID, $tax, array('fields' => 'ids') );

    }
    if ( $tax_term_ids ) {
        $args = array(
            'post_type' => $post->post_type,
            'posts_per_page' => $count,
            'orderby' => 'rand',
            'tax_query' => array(
                array(
                    'taxonomy' => $tax,
                    'field' => 'id',
                    'terms' => $tax_term_ids
                )
            ),
            'post__not_in' => array ($post->ID),
        );
        $related = new WP_Query( $args );

        if ($related->have_posts()) : ?>


<aside>

<h3>Xem thêm</h3>


<ul>

            <?php while ( $related->have_posts() ) : $related->the_post(); ?>


<li><a href="<?php echo amp_get_permalink( get_the_id() ); ?>" title="<?php the_title_attribute(); ?>"><?php the_title(); ?></a></li>


            <?php endwhile; wp_reset_postdata(); ?>

            </ul>

                       </aside>


        <?php endif; } } function my_add_related_posts_to_amp( $template ) { ?>

<div class="amp-wp-content">
    <?php my_amp_related_posts(); ?>
    </div>

    <?php
}
add_action( 'amp_post_template_footer', 'my_add_related_posts_to_amp' );
 /**
 * Het code bai viet lien quan cuoi moi bai trong AMP thay so 7 bang so ban muon
 */