Return value of mb_get_info can be NULL

This has been the case at least since PHP 5.4. Thanks to Girgias for
pointing it out.

It appears that there are several global variables

Return value of mb_get_info can be NULL

This has been the case at least since PHP 5.4. Thanks to Girgias for
pointing it out.

It appears that there are several global variables internal to mbstring
which can be queried via mb_get_info() and which could be NULL, but
at the very least, we know that "mbstring.http_input" is one of them.

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Regenerate optimizer func info after preprocessor condition changes

Fix mb_strimwidth RC info

Closes GH-9254

Fix rc info of iterator_to_array (#9080)

This function can now return a copy of the provided array, resulting in
a value of RC != 1.

Implement Random Extension

https://wiki.php.net/rfc/rng_extension
https://wiki.php.net/rfc/random_extension_improvement

Fix RC func info of str_split (#9016)

Introduced in GH-8945

With RETURN_EMPTY_ARRAY this function can now return an interned array which
has refcount 2.

Declare true return types (#8759)

Regen missing Zend/Optimizer/zend_func_infos.h

Regenerate optimizer function info

Improve and fix stub return types (#8368)

Regenerate optimized func infos

Using the --generate-optimizer-info option for ./build/gen_stubs.php

Merge branch 'PHP-8.0' into PHP-8.1

* PHP-8.0:
Fix GH-7759: Incorrect return types for hash() and hash_hmac()

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

ext/ftp, ext/gmp, ext/intl

Closes GH-7433

Add more specific array return type hints for various extensions - part 1

ext/bz2, ext/calendar, ext/dba, ext/enchant

Closes GH-7432

Regenerate optimizer info

While the stub definitions were updated, the generated optimizer
info was stale.

Add more specific array return type hints for various extensions - part 6 (#7474)

Add more specific array return type hints for various extensions - part 4 (#7469)

Add more specific array return type hints for various extensions - part 3 (#7467)

Generate optimizer func info from stubs for ext/standard - part 3 (#7426)

Specify a few array func info entries (#7425)

Add support for generating MAY_BE_ARRAY_OF_REF func info flag (#7416)

Ensure stub files are processed in predictable order

The zend_func_infos.h file was generated in a different order for
me.

str_replace() can return the original string

Generate optimizer func info from stubs for ext/standard - part 2 (#7414)

Generate optimizer func info from stubs for ext/standard - part 1 (#7413)