Bug #74940 [PATCH]: DateTimeZone loose comparison always true until properties are initialized.

Edit report at https://bugs.php.net/bug.php?id=74940&edit=1 ID: 74940 Patch added by: cmb@php.net Reported by: arjen at parse dot nl Summary: DateTimeZone loose comparison always true until properties are initialized. Status: Assigned Type: Bug Package: Date/time related Operating System: irrelevant PHP Version: 7.0 Assigned To: jhdxr Block user comment: N Private report: N New Comment: The following pull request has been associated: Patch Name: Fix #74940: DateTimeZone loose comparison always true On GitHub: https://github.com/php/php-src/pull/5227 Patch: https://github.com/php/php-src/pull/5227.patch Previous Comments: ------------------------------------------------------------------------ [2018-12-04 23:04:14] a at b dot c dot de Related To: Bug #77202 ------------------------------------------------------------------------ [2017-08-13 14:43:18] jhdxr@php.net var_dump will call get_properties, which updates properties inside the object. ------------------------------------------------------------------------ [2017-07-22 05:53:01] heiglandreas@php.net That seems to be related to the issue with setting internal variables on var_Dump. But from my POV it should definitely evaluate to false in ALL cases when the timezones mismatch. ------------------------------------------------------------------------ [2017-07-17 12:52:17] arjen at parse dot nl Description: ------------ When using the loose equal comparision, the result is always true when the internal DateTimeZone properties have not been initialized yet. Properties have to be 'initialized' by var_dump'ing the objects. See https://3v4l.org/EQ1AG#v720alpha3 Test script: --------------- <?php $tz = new DateTimeZone('Europe/Amsterdam'); $utc = new DateTimeZone('UTC'); var_dump($tz == $utc); var_dump($tz === $utc); var_dump($tz, $utc); var_dump($tz == $utc); var_dump($tz === $utc); Expected result: ---------------- bool(false) bool(false) object(DateTimeZone)#1 (2) { ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } object(DateTimeZone)#2 (2) { ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } bool(false) bool(false) Actual result: -------------- bool(true) bool(false) object(DateTimeZone)#1 (2) { ["timezone_type"]=> int(3) ["timezone"]=> string(16) "Europe/Amsterdam" } object(DateTimeZone)#2 (2) { ["timezone_type"]=> int(3) ["timezone"]=> string(3) "UTC" } bool(false) bool(false) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=74940&edit=1