date_create_immutable

<?php         $dateTime = DateTimeImmutable::createFromFormat($platform->getDateTimeFormatString(), $value);



        if ($dateTime === false) {

            $dateTime = date_create_immutable($value);

        }



        if ($dateTime === false) {

<?php             return $value;

        }



        $dateTime = date_create_immutable($value);



        if ($dateTime === false) {

            throw ConversionException::conversionFailed($value, $this->getName());