Redirect to first post if found only one relevant post in search

[hoangvu]

Let's start with a snippet that will automatically redirect the reader if you only find a related post while searching. Simply paste the following code in the file functions.php and that was it.

add_action ('template_redirect', 'redirect_single_post'); 
  function redirect_single_post () { 
      if (is_search ()) { 
          global $ wp_query; 
          if ($ wp_query-> post_count == 1) { 
              wp_redirect (get_permalink ($ wp_query-> posts ['0 '] -> ID)); 
          } 
      } 
  }