Include Post ID in Search Results

Hi,

I have created a shortcode which should display the POST IDs on a single page template I created. However, if I try to search for a post ID, it results to no results. Here’s the function I have created.


add_shortcode( 'return_KB_id', 'the_dramatist_return_post_id' );

function the_dramatist_return_post_id() {
return get_the_ID();
}