Backport fix from PHP 8.3: The exception handler already takes care of destroying the return value

Fix GH-15582: Crash when not calling parent constructor of DateTimeZone

Add missing return for DatePeriod::__unserialize

Additionally, add other RETURN_THROWS() defensively.

Fix GH-11416: Crash with DatePeriod when uninitialised objects are passed in (PHP 8.2+)

Merge branch 'PHP-8.1' into PHP-8.2

Fix GH-11416: Crash with DatePeriod when uninitialised objects are passed in

Merge branch 'PHP-8.1' into PHP-8.2

Fixed GH-11368: Date modify returns invalid datetime

Fix GH-11455: Segmentation fault with custom object date properties

Closes GH-11473.

Merge branch 'PHP-8.1' into PHP-8.2

* PHP-8.1:
Fix GH-11281: DateTimeZone::getName() does not include seconds in offset

Fix GH-11281: DateTimeZone::getName() does not include seconds in offset

If the seconds portion is non-zero, include the seconds in the output.

Closes GH-11282.

Merge branch 'PHP-8.1' into PHP-8.2

Fix GH-10583: DateTime modify with tz pattern should not update linked timezone

Fixed oss-fuzz #56931

Fix GH-10747: Private and protected properties in serialized Date* objects throw

Fixed OSS fuzz issues #55589, #55599, and #55727

Merge branch 'PHP-8.1' into PHP-8.2

Fixed GH-10447: 'p' format specifier does not yield 'Z' for 00:00

Fix GH-10152: Custom properties of Date's child classes are not serialised

Merge branch 'PHP-8.1' into PHP-8.2

Fix GH-9891: DateTime modify with unixtimestamp (@) must work like setTimestamp

Merge branch 'PHP-8.1' into PHP-8.2

Merge branch 'PHP-8.0' into PHP-8.1

Fixed GH-9763: DateTimeZone ctr mishandles input and adds null byte if the argument is an offset larger than 100*60 minutes

Use 'const' for fixed API