NumPHP\Core\NumArray\StringHelper::toString PHP 메소드

    public static function toString($data)
    {
        return self::toStringRecursive($data);
    }

 /**
  * Returns a string representing the NumArray
  *
  * @return string
  *
  * @api
  * @since 1.0.0
  */
 public function __toString()
 {
     return "NumArray(" . StringHelper::toString($this->data) . ")\n";
 }