It was brought to our attention that MasterPress would give a tonne of warnings and deprecation notices when used with PHP 7.4 – this update addresses those.
MPFT_CheckboxList :: __toString()
Overloads --to-string to return a CSV representation of the checked values. This implementation allows the field object to be echoed directly (MEOW_Field will forward to this method). This method is not intended to be called directly.