original_string: public function get_category($key = 0)
  	{
  		$categories = $this->get_categories();
  		if (isset($categories[$key]))
  		{
  			return $categories[$key];
  		}
  		else
  		{
  			return null;
  		}
  	}
code: public function get_category($key = 0)
  	{
  		$categories = $this->get_categories();
  		if (isset($categories[$key]))
  		{
  			return $categories[$key];
  		}
  		else
  		{
  			return null;
  		}
  	}
code_tokens: public function get_category ( $ key = 0 ) { $ categories = $ this -> get_categories ( ) ; if ( isset ( $ categories [ $ key ] ) ) { return $ categories [ $ key ] ; } else { return null ; } }
docstring: Get a category for the feed
  
  @since Unknown
  @param int $key The category that you want to return. Remember that arrays begin with 0, not 1
  @return SimplePie_Category|null
docstring_tokens: Get a category for the feed