IntlDateFormatter::format(): datefmt_format: takes either an array or an integer timestamp value or a DateTime object (SonataSanBox) [closed]
when you persist user->dateRelatedProperty are you sure your attempting to set a " DateTime object, an IntlCalendar object, a numeric type representing a (possibly fractional) number of seconds since epoch or an array in the format output by localtime(). " --from php.net I have a feeling this is a case of having an incorrect type or format.