Excluding WordPress pages from search engine results using the PHP function

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Excluding WordPress pages from search result

1. Log in to your WordPress site with an administrator account.
2. On the Dashboard in the left sidebar, click Appearance, and then click Theme Editor:
   
3. On the Theme Editor, select the Theme you want to edit from the dropdown:
   
4. The files for this selected theme are listed on the right column under Theme Files. Click on the file named “functions.php”:
   
5. Insert the following code to the end of functions.php file and click Update File Button to save the changes:

function SearchFilter($query) {

        if ($query->is_search) {

                  $query->set('post_type', 'post');

          }

      return $query;

 }

add_filter('pre_get_posts','SearchFilter');

6. The code above will exclude pages from WordPress search results. The pre_get_posts hook filters the search result. In this code the filter condition is set post_type to post, which limits search to only posts from the WordPress site

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