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.

Support the actual `#[\SensitiveParameter]` attribute in stubs (#8836)

Add ini_parse_quantity function to convert ini quantities shorthand notation to int (#8454)

Declare true return types (#8759)

Mark parameter in ext/standard as sensitive

No changes to the stubs required, password_hash and password_verify were added
to the initial version of the stub support.

Add deprecation notices to utf8_encode and utf8_decode

Implements initial stage of accepted RFC to remove them:
https://wiki.php.net/rfc/remove_utf8_decode_and_utf8_encode

Tests

Add deprecation notices to utf8_encode and utf8_decode

Implements initial stage of accepted RFC to remove them:
https://wiki.php.net/rfc/remove_utf8_decode_and_utf8_encode

Tests relating to SOAP and htmlspecialchars seem to have been
using this entirely unnecessarily, so have been fixed.

Closes GH-8726.

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Add support for sensitive parameters in stubs

Add support for class constants in stubs (#7434)

Improve and fix stub return types (#8368)

Restore memory_reset_peak_usage() declaration

Cf. <https://github.com/php/php-src/pull/8151/files#r819605725>.

Add missing #endif in stubs

This slipped away during the rebase of 5171cb435a69c418231acc487819ce47b52711df

Fix [-Wundef] warnings in standard extension

Remove special chr/count handling in sccp function evaluation

These can be handled by the generic code. Worth noting that count
will usually go through ZEND_COUNT, and chr on constants i

Remove special chr/count handling in sccp function evaluation

These can be handled by the generic code. Worth noting that count
will usually go through ZEND_COUNT, and chr on constants is
evaluated in the compiler, so these are not particularly compile-time
sensitive either.

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Merge branch 'PHP-8.1'

* PHP-8.1:
$context parameter of get_headers() is nullable

Merge branch 'PHP-8.0' into PHP-8.1

* PHP-8.0:
$context parameter of get_headers() is nullable

$context parameter of get_headers() is nullable

Closes GH-7813.

Allow internal functions to declare if they support compile-time evaluation, add functions. (#7780)

https://wiki.php.net/rfc/strtolower-ascii means that these functions no longer
depend

Allow internal functions to declare if they support compile-time evaluation, add functions. (#7780)

https://wiki.php.net/rfc/strtolower-ascii means that these functions no longer
depend on the current locale in php 8.2. Before that, this was unsafe to
evaluate at compile time.

Followup to GH-7506

Add strcmp/strcasecmp/strtolower/strtoupper functions

Add bin2hex/hex2bin and related functions

Update test of garbage collection using strtolower to use something else to create a refcounted string

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Merge branch 'PHP-8.0' into PHP-8.1

* PHP-8.0:
Fix the return type of imagecolorexactalpha()
String default values are enclosed in quotes rather than apostrophes

String default values are enclosed in quotes rather than apostrophes

Update stub to show default of ENT_HTML401 (for documentation)

Closes GH-7514.

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

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)