/**
phpDox
Overview
Namespaces
Interfaces
Classes
Traits
Source
Overview
Classes
Symfony\Component\Form
Button
getExtraData
Introduction
Synopsis
Return
Interface
Source
Symfony\Component\Form\Button::
getExtraData
Unsupported method.
Signature
public function getExtraData()
Returns
array
Always returns an empty array.
Defined by Interface
FormInterface