How to: Add “del” and “spam” buttons to your comments

Wouldn’t it be nice if you were able to mark a comment as spam, or even delete it, from your blog, without visiting your WordPress dashboard? If you’re interested, read on, you’ll probably not regret it

First, we have to create the function. Paste the code below on the functions.php file from your theme. If that file doesn't exists, create it.

function delete_comment_link($id) {
  if (current_user_can('edit_post')) {
    echo '| <a href="'.admin_url("comment.php?action=cdc&c=$id").'">del</a> ';
    echo '| <a href="'.admin_url("comment.php?action=cdc&dt=spam&c=$id").'">spam</a>';
  }
}

Then, edit your comments.php file. Add the following code where you want it to appear. It must be within the comment loop. On most themes, you'll find a edit_comment_link() declaration. Add the code just after.