```php
__isset ( string $name ) : bool
```

| Parameter | Description                                              |
|-----------|----------------------------------------------------------|
| `name`    | `outertext`, `innertext`, `plaintext` or attribute name. |

See [magic methods](http://php.net/manual/en/language.oop5.overloading.php#object.get)

Returns true if the provided name is a valid attribute name or any of the values in the table below. False otherwise.

| Name        | Description                                 |
|-------------|---------------------------------------------|
| `outertext` | Returns the outer text of the current node. |
| `innertext` | Returns the inner text of the current node. |
| `plaintext` | Returns the plain text of the current node. |