WordPress Exclude Posts and Pages from Search Results

Sometimes you don’t want all of your posts and pages appearing in your search results. Use this snippet to shun whichever ones you want.

 
// search filter
function fb_search_filter($query) { 
 
if ( !$query->is_admin &amp;&amp; $query->is_search) { 
$query->set('post__not_in', array(40, 9) ); // id of page or post} 
 
return $query; 
} 
add_filter( 'pre_get_posts', 'fb_search_filter' );

To exclude the subpage of a page you need to add it to the IS:

 
// search filter
function fb_search_filter($query) { 
 
if ( !$query->is_admin &amp;&amp; $query->is_search) { 
$pages = array(2, 40, 9); // id of page or post// find children to id>foreach( $pages as $page ) { 
$childrens = get_pages( array('child_of' => $page, 'echo' => 0) ); 
} 
// add id to array>for($i = 0; $i < sizeof($childrens); ++$i) { $pages[] = $childrens[$i]->ID; 
} 
$query->set('post__not_in', $pages ); 
} 
 
return $query; 
} 
add_filter( 'pre_get_posts', 'fb_search_filter' );