Declare ext/intl constants in stubs - part 9 (#9276)

Fix GH-7939: Cannot unserialize IntlTimeZone objects

As it is now, `IntlTimeZone`, `IntlCalendar` and `IntlDateFormatter`
and some other intl class instances can be serialized, but the

Fix GH-7939: Cannot unserialize IntlTimeZone objects

As it is now, `IntlTimeZone`, `IntlCalendar` and `IntlDateFormatter`
and some other intl class instances can be serialized, but the
representation is meaningless, and unserialization yields uninitialized/
unusable objects. To prevent users from noticing this too late, we deny
serialization of such objects in the first place.

Closes GH-7945.

show more ...

Add more specific array return type hints for various extensions - part 2

ext/ftp, ext/gmp, ext/intl

Closes GH-7433

Declare tentative return types for ext/intl (#6986)

Merge branch 'PHP-8.0'

* Fix return type of php_user_filter::onCreate()
* Fix return type of mysqli::init()
* Fix return type of UConverter::fromUCallback() and UConverter::toUCallba

Merge branch 'PHP-8.0'

* Fix return type of php_user_filter::onCreate()
* Fix return type of mysqli::init()
* Fix return type of UConverter::fromUCallback() and UConverter::toUCallback()

show more ...

Fix return type of UConverter::fromUCallback() and UConverter::toUCallback()

Closes GH-6950

Generate ext/intl class entries from stubs

Closes GH-6670

Promote warnings to exceptions in ext/intl

Closes GH-5972

Add another round of missing parameter types to stubs

Closes GH-5950

Generate method entries for ext/intl

Closes GH-5370

Add stubs for UConverter

Closes GH-5218