public function count()
	{
		$count = 0;

		for ($index = 0, $length = strlen($this->data); $index < $length; $index++)
		{
			$count += self::$count[ord($this->data[$index])];
		}

		return $count;
	}
public function count()
	{
		$count = 0;

		for ($index = 0, $length = strlen($this->data); $index < $length; $index++)
		{
			$count += self::$count[ord($this->data[$index])];
		}

		return $count;
	}
public function count ( ) { $ count = 0 ; for ( $ index = 0 , $ length = strlen ( $ this -> data ) ; $ index < $ length ; $ index ++ ) { $ count += self :: $ count [ ord ( $ this -> data [ $ index ] ) ] ; } return $ count ; }
Return the number of true bits

@return  integer  The number of true bits

@since   1.0.0
Return the number of true bits