How is this design pattern called?

How do you call this design pattern?

class Foo {
   protected $delegates = array();
   //...
   public function __call($meth开发者_如何学运维od,$argv) {
      //call $this->$something->$method($argv), where $something is a mapping from $this->delegates
   }
}

I can speculate, but I'm not sure, so I wanted to ask you.

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The aptly named Delegation pattern?