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_RelatedSite :: offsetExists( Integer $index )
Checks if the numerical array offset exists for the sites selected in the UI. Since this overrides offset-exists the offset test can be made by calling isset directly on the field object.
Note: This method is intended for internal use and should not be called directly.