Bug #65683 [Com]: Incomplete support of DateTimeImmutable as DateTime(Interface)

Edit report at https://bugs.php.net/bug.php?id=65683&edit=1 ID: 65683 Comment by: poinsot dot julien at gmail dot com Reported by: poinsot dot julien at gmail dot com Summary: Incomplete support of DateTimeImmutable as DateTime(Interface) Status: Open Type: Bug Package: Date/time related PHP Version: 5.5.3 Block user comment: N Private report: N New Comment: The commit you mention seems to allow DateTimeImmutable usage with DatePeriod::__construct but still does not fix intl stuffs. Test script: --------------- ini_set('intl.error_level', E_WARNING); var_dump( datefmt_create('fr_FR', IntlDateFormatter::FULL, IntlDateFormatter::FULL)->format(date_create_immutable('1970-01-01')), datefmt_create('fr_FR', IntlDateFormatter::FULL, IntlDateFormatter::FULL)->format(date_create('1970-01-01')) ); Actual result: -------------- Warning: IntlDateFormatter::format(): datefmt_format: invalid object type for date/time (only IntlCalendar and DateTime permitted) in %s on line %d bool(false) string(39) "jeudi 1 janvier 1970 00:00:00 UTC+01:00" Expected result: ---------------- string(39) "jeudi 1 janvier 1970 00:00:00 UTC+01:00" string(39) "jeudi 1 janvier 1970 00:00:00 UTC+01:00" Previous Comments: ------------------------------------------------------------------------ [2014-03-27 16:09:27] phofstetter at sensational dot ch This has been fixed in 5f09944662e09ea0b3f93cfab8702f188955e68c which is in 5.5.9 and later. ------------------------------------------------------------------------ [2013-09-16 17:26:36] poinsot dot julien at gmail dot com Description: ------------ Actually, DateTimeImmutable is not usable everywhere DateTime is. Missing support I have found is: * DatePeriod::__construct where end parameter does not allow a DateTimeImmutable objet as date_ce_date is used instead of date_ce_interface * intl extension (see grep -rn php_date_get_date_ce ext/intl for complete list) which use the function php_date_get_date_ce (so date_ce_date) Test script: --------------- var_dump(datefmt_create('fr_FR')->format(date_create_immutable('1970-01-01'))); $start = new DateTimeImmutable('last monday'); var_dump(new DatePeriod($start, DateInterval::createFromDateString('1 day'), $start->add(DateInterval::createFromDateString('5 days')))); Expected result: ---------------- string(39) "jeudi 1 janvier 1970 00:00:00 UTC+01:00" object(DatePeriod)#3 (6) { ... } Actual result: -------------- Warning: IntlDateFormatter::format(): datefmt_format: object must be an instance of DateTime in %s on %d Fatal error: Uncaught exception 'Exception' with message 'DatePeriod::__construct(): This constructor accepts either (DateTimeInterface, DateInterval, int) OR (DateTimeInterface, DateInterval, DateTime) OR (string) as arguments.' in %s:%d ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=65683&edit=1