Why is $this->clients so large?
Hi

i just startet with ratchet and i did some basic testes. i used the example from the tutorial page (http://socketo.me/docs/hello-world).

to understand what _**$this->clients**_ contains, i added a _**var_dump($this->clients)**_ to the onOpen()-method. 

than i started the server with '_**php chat-server.php >output.txt**_'

with one client, the output.txt is _600 KB_, with two clients its _20 MB_, with three its _200 MB_ and with four clients its _800 MB_ (yes, MB).

is this normal? why is  $this->clients so big?

