Doctrine\MongoDB\Query\Expr::bitAnd PHP 메소드

    public function bitAnd($value)
    {
        return $this->bit('and', $value);
    }

 /**
  * Apply a bitwise and operation on the current field.
  *
  * @see Expr::bitAnd()
  * @see http://docs.mongodb.org/manual/reference/operator/update/bit/
  * @param int $value
  * @return self
  */
 public function bitAnd($value)
 {
     $this->expr->bitAnd($value);
     return $this;
 }