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```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. |