this is going to be useful

thanks for the article. I know there have been times when I wished for something like this, e.g., when there is a method that is useful and you'd like to have it in different classes, but you don't want to extend a common parent, but you also don't want to use composition because it's overkill, or static methods because it doesn't seem a good enough reason to make it static and/or the method needs $this.