在函数中放置任何过滤器。php

Using pre get posts

// Filter the search page
add_filter(\'pre_get_posts\', \'search_pre_get_posts\');

function search_pre_get_posts($query)
{
    // Verify that we are on the search page that that this came from the event search form
    if($query->query_vars[\'s\'] != \'\' && is_search())
    {
        // If "s" is a positive integer, assume post id search and change the search variables
        if(absint($query->query_vars[\'s\']))
        {
            // Set the post id value
            $query->set(\'p\', $query->query_vars[\'s\']);

            // Reset the search value
            //$query->set(\'s\', \'\');
        }
    }
}

Using posts where query

add_filter(\'posts_where\', \'posts_where\');
    function posts_where($where)
        {

            $s = $_GET[\'s\'];

            if(!empty($s))
            {
              if(is_numeric($s))
              {
                global $wpdb;

                $where = str_replace(\'(\' . $wpdb->posts . \'.post_title LIKE\', \'(\' . $wpdb->posts . \'.ID = \' . $s . \') OR (\' . $wpdb->posts . \'.post_title LIKE\', $where);
              }
              elseif(preg_match("/^(\\d+)(,\\s*\\d+)*\\$/", $s)) // string of post IDs
              {
                global $wpdb;

                $where = str_replace(\'(\' . $wpdb->posts . \'.post_title LIKE\', \'(\' . $wpdb->posts . \'.ID in (\' . $s . \')) OR (\' . $wpdb->posts . \'.post_title LIKE\', $where);
              }
            }


          return $where;
        }

现在如何显示帖子的所有价值，我给你提示。

编辑您的搜索。php或添加搜索。主题中的php。基本上每个主题都有搜索。php，所以您只需要稍微修改一下。

我给你一些搜索的示例代码。php。您将根据需要对其进行修改。

<?php
if ( have_posts() ) :
while ( have_posts() ) :  the_post();
$post_id = get_the_ID();
$id = get_post_thumbnail_id($post_id);
$image = wp_get_attachment_image_url($id,\'full\');
?>
// Print The title
<?php echo get_the_title($post_id); ?>
//print full content of the post
<?php echo get_the_content(); ?>
//print the excert
<?php print get_the_excerpt($post_id); ?>
// print the image  
<img src="<?php echo $image; ?>" class="attachment-portfolio-three size-portfolio-three wp-post-image" alt="">
// suppose custom field
<a href="<?php echo get_the_permalink($post_id); ?>">
                          <?php echo get_post_meta($post_id,\'custom_field_1\',true);?>
                        </a>
// suppose custom field 2
<a href="<?php echo get_the_permalink($post_id); ?>">
                          <?php echo get_post_meta($post_id,\'custom_field_2\',true);?>
                        </a>
// suppose custom field  3                          
<a href="<?php echo get_the_permalink($post_id); ?>">
                          <?php echo get_post_meta($post_id,\'custom_field_2\',true);?>
                        </a>                                                        
<?php endwhile;?>
<?php wp_reset_query();
// print pagination and also its arg if you use my code.
paginate_links($args); 
else :
?>
<p><?php _e( \'Sorry, but nothing matched your search terms. Please try again with some different keywords.\', \'twentyseventeen\' ); ?></p>
  <?php
    get_search_form();

endif;
?>