exclude post type from search

gistfile1.php

<?php

add_action( 'parse_query', 'gws_exclude_from_search' );

function gws_exclude_from_search( $q ) {
	$exclude_from_search = array( 'gallery-entries' );
	if ( $q->is_search ) {
		foreach ( $exclude_from_search as $post_type ) {
			$post_type_object = get_post_type_object( $post_type );
			$post_type_object->exclude_from_search = true;
		}
	}
}