--- title: keyboardButtonCallback description: Keyboard button callback image: https://docs.madelineproto.xyz/favicons/android-chrome-256x256.png --- # Constructor: keyboardButtonCallback [Back to constructors index](index.md) Keyboard button callback ### Attributes: | Name | Type | Required | Description | |----------|---------------|----------|-------------| |text|[string](../types/string.md) | Yes|Text| |data|[bytes](../types/bytes.md) | Yes|Data| ### Type: [KeyboardButton](../types/KeyboardButton.md) ### Example: ```php $keyboardButtonCallback = ['_' => 'keyboardButtonCallback', 'text' => 'string', 'data' => 'bytes']; ``` Or, if you're into Lua: ```lua keyboardButtonCallback={_='keyboardButtonCallback', text='string', data='bytes'} ```