Example for PHP Traits

Traits.php

<?php
trait SharableTrait {
  public function share($item){
    return 'share this item';
  }
}

trait MailableTrait {
  public function mail($to){
    mail($to, 'Foo', 'Body-Text');
  }
}

interface SharableInterface {
	public function share($item);
}

interface MailableInterface {
	public function mail($to);
}

class Post implements SharableInterface {
  use SharableTrait;
  use MailableTrait;
}
 
class Comment implements SharableInterface {
  use SharableTrait;
}

$post = new Post;
echo $post->share(''); // 'share this item' 
$post->mail('foo@bar.com'); // will send a mail
 
$comment = new Comment;
echo $comment->share(''); // 'share this item'
$comment->mail('foo@bar.com'); // will not work, Comment misses the trait