public function get_credit($key = 0)
	{
		$credits = $this->get_credits();
		if (isset($credits[$key]))
		{
			return $credits[$key];
		}
		else
		{
			return null;
		}
	}
public function get_credit($key = 0)
	{
		$credits = $this->get_credits();
		if (isset($credits[$key]))
		{
			return $credits[$key];
		}
		else
		{
			return null;
		}
	}
public function get_credit ( $ key = 0 ) { $ credits = $ this -> get_credits ( ) ; if ( isset ( $ credits [ $ key ] ) ) { return $ credits [ $ key ] ; } else { return null ; } }
Get a single credit

@param int $key
@return SimplePie_Credit|null
Get a single credit