FormInterface add(FormInterface|string|int $child, string|null $type = null, array $options = array())
Adds or replaces a child to the form.
FormInterface add(FormInterface|string|int $child, string|null $type = null, array $options = array())
Adds or replaces a child to the form.
| FormInterface|string|int | $child | The FormInterface instance or the name of the child |
| string|null | $type | The child's type, if a name was passed |
| array | $options | The child's options, if a name was passed |
| FormInterface | The form instance |
| AlreadySubmittedException | If the form has already been submitted. |
| LogicException | When trying to add a child to a non-compound form. |
| UnexpectedTypeException | If $child or $type has an unexpected type. |
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