Add META Tags to WordPress Head

完成这项任务非常容易地利用WordPress hook系统,特别是wp_head。 hook:

// Worker function - echo tags to be added to the header
function dont_follow_some_posts() {
  global $IMPORTANT_CATEGORIES, $post;

  if(isset($post) && is_single($post) && in_category($IMPORTANT_CATEGORIES[ sponsored ], $post->id)) {
    echo   ;
  }
  else {
    echo   ;
  }
}

// Hook into "wp_head" to add meta tags
add_filter( wp_head ,  dont_follow_some_posts );