';
$paragraphs = explode( $closing_p, $content );
foreach ($paragraphs as $index => $paragraph) {
if ( trim( $paragraph ) ) {
$paragraphs[$index] .= $closing_p;
}
if ( $paragraph_id == $index + 1 ) {
$paragraphs[$index] .= $insertion;
}
}
return implode( '', $paragraphs );
}
//Chèn bài liên quan vào giữa nội dung
add_filter( 'the_content', 'prefix_insert_post_ads' );
function prefix_insert_post_ads( $content ) {
global $post;
$relate_post = '';
wp_reset_query();
$terms = get_the_terms( $post_id, 'category' );
if ( empty( $terms ) ) $terms = array();
$term_list = wp_list_pluck( $terms, 'slug' );
$related_args = array(
'post_type' => 'post',
'posts_per_page' => '4',
'orderby' => 'rand',
'post_status' => 'publish',
'post__not_in' => array(get_the_ID()),
'tax_query' => array(
array(
'taxonomy' => 'category',
'field' => 'slug',
'terms' => $term_list
)
)
);
$related = new WP_Query( $related_args );
if( $related->have_posts() ) :
$relate_post = 'Nên đọc bài sau:
';
while( $related->have_posts() ): $related->the_post();
$relate_post .= '- '. get_the_title() .'
';
endwhile;
$relate_post .= '
';
endif;
wp_reset_postdata();
wp_reset_query();
if ( is_single() ) {
return count_paragraph( $relate_post, 2, $content );
}
return $content;
}