display ads on old posts only

function is_old_post($post_id=null){ $days = 15; global $wp_query; if(is_single() || is_page()) { if(!$post_id) { $post_id = $wp_query->post->ID; } $current_date = time(); $offset = $days *60*60*24; $post_id = get_post($post_id); $post_date = mysql2date('U',$post_id->post_date); $cunning_math = $post_date + $offset; $test = $current_date - $cunning_math; if($test > 0){ $return = true; }else{ $return = false; } }else{ $return = false; } return $return; } <?php if(is_old_post()){ ?> INSERT AD CODE HERE <?php } ?>


ads on old posts