search.php

<?php get_header(); ?>

<?php
  $search_query = get_search_query();
  $paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
  $posts_per_page = 16;
  $list_post_args = array(
    's'                => $search_query,
		'paged'            => $paged,
    'post_status'      => 'publish',
    'suppress_filters' => false,
		'posts_per_page'   => $posts_per_page,
    'sentence'         => true
  );
  $list_posts = get_posts($list_post_args);
  // pagination
  $custom_query = new WP_Query( $list_post_args );
  $found_posts = $custom_query->found_posts;
  $number_of_pages = ceil($found_posts / $posts_per_page);

  $big = 999999999; // need an unlikely integer
  $pag_arg = array(
    'base'      => str_replace( $big, '%#%', esc_url( get_pagenum_link( $big ) ) ),
    'format'    => '?paged=%#%',
    'prev_text' => __('«'),
    'next_text' => __('»'),
    'current'   => max( 1, get_query_var('paged') ),
    'total'     => $number_of_pages
  );

  // for pagination
  set_query_var('pag_arg', $pag_arg);
  set_query_var('number_of_pages', $number_of_pages);
?>

<div class="all-posts">
  <section>
    <div class="container">

      <div class="row list-of-post justify-content-center">
        <div class="col-12 col-xl-10">
          <div class="container">
            <div class="row justify-content-center">
              <div class="col-12">
                <h2 class="search-title">
                  <span class="default_query">Kết quả tìm kiếm cho</span> <span class="keyword_quey">"<?php echo get_search_query(); ?>"</span>
                </h2>
              </div>

              <div class="col-12">
                <div class="result-list">
                <?php /* Start the Loop */ ?>
                <?php if ( $list_posts ) : ?>
                <?php foreach($list_posts as $post) :
                  $post_id = $post->ID;
                ?>
                  <div class="item">
                    <div class="content">
                      <div class="meta">
                        <?php
                          $first_cat = get_the_category($post_id);
                          $rand_number = rand(0,count($first_cat)-1);
                          $cat_id = $first_cat[$rand_number]->term_id;
                        ?>
                        <a class="cat-title-<?php echo $cat_id; ?>" href="<?php echo esc_url( get_category_link($cat_id) ) ?>">
                          <?php echo $first_cat[$rand_number]->name; ?>
                        </a>
                        <span class="dot">&#9679;</span>
                        <span>
                          <?php
                            date_default_timezone_set('Asia/Ho_Chi_Minh
                            ');
                            $from = strtotime($post->post_date);
                            $today = time();
                            $difference = floor(($today - $from)/86400); // day
                            if ((get_field('update',$post_id)==true) & $difference < 7):
                              echo 'Mới cập nhật';
                            elseif ($difference == 0):
                              echo 'Vừa mới đăng';
                            elseif ($difference < 7):
                              echo $difference.' ngày trước';
                            else:
                              echo date('d-m-y', strtotime($post->post_date));
                            endif;
                          ?>
                        </span>
                      </div>
                      <a class="title-excerpt" href="<?php the_permalink(); ?>" >
                        <h2 class="title">
                          <?php echo get_the_title($post_id); ?>
                        </h2>
                        <div class="excerpt">
                          <?php if (has_excerpt($post_id)){
                            echo esc_attr(get_the_excerpt($post_id));
                          }else{
                            setup_postdata( $post );
                            echo get_the_excerpt();
                          } ?>
                        </div>
                      </a>
                    </div>
                    <a href="<?php the_permalink(); ?>" >
                      <div class="photo">
                        <?php
                          if ( has_post_thumbnail($post_id) ) {
                            $postThumbnail = get_the_post_thumbnail($post_id,'medium' );
                            echo $postThumbnail;
                          }else{
                            $first_cat = get_the_category($post_id);
                            $postThumbnail = get_field('default_posts_feature_image',$first_cat[$rand_number]);
                            echo wp_get_attachment_image( $postThumbnail['id'],'medium');
                          }
                        ?>
                      </div>
                    </a>
                  </div> <!-- /div item -->
                <?php endforeach; ?>
                <?php else: ?>
                  <p>Rất tiếc, không tìm thấy kết quả bạn cần tìm.</p>
                <?php endif; ?>
                </div>
              </div>
            </div> <!-- /div row small -->
          </div>
        </div>
      </div>

    </div> <!-- /div container big -->
  </section>

  <?php get_template_part( 'parts/pagination' ); ?>
</div><!-- /div.all-post -->

<?php get_footer(); ?>