Minor refactoring of main/main.c and TSRM (#8608)

Don't initialise pointers to zend_stat_t

Initialise zend_stat_t to fix MSAN build

Merge branch 'PHP-8.1'

Fix unregistering ini entries of dynamically loaded extension (#8435)

Fixes GH-8185

Refacto php_module_startup() (#8303)

It only ever uses at most 1 additional modules

Fix GH-8310: Registry settings are no longer recognized

`zend_file_handle->filename` is a `zend_string*` pointer now, so we
must not cast to `char*` but rather pass the underlying `char*

Fix GH-8310: Registry settings are no longer recognized

`zend_file_handle->filename` is a `zend_string*` pointer now, so we
must not cast to `char*` but rather pass the underlying `char*`.

Closes GH-8313.

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Merge branch 'PHP-8.0' into PHP-8.1

Fix GH-8082: Prevent leaking memory on observed transient run_time_caches

This is achieved by tracking the observers on the run_time_cache (with a fixed amount of slots, 2 for each observer)

Fix GH-8082: Prevent leaking memory on observed transient run_time_caches

This is achieved by tracking the observers on the run_time_cache (with a fixed amount of slots, 2 for each observer).
That way round, if the run_time_cache is freed all associated observer data is as well.

This approach has been chosen, as to avoid any ABI or API breakage.
Future versions may for example choose to provide a hookable API for run_time_cache freeing or similar.

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Fix bug #81598: Use C.UTF-8 as LC_CTYPE locale by default

Unfortunately, libedit is locale based and does not accept UTF-8
input when the C locale is used. This patch switches the defaul

Fix bug #81598: Use C.UTF-8 as LC_CTYPE locale by default

Unfortunately, libedit is locale based and does not accept UTF-8
input when the C locale is used. This patch switches the default
locale to C.UTF-8 instead (if it is available). This makes libedit
work and I believe it shouldn't affect behavior of single-byte
locale-dependent functions that PHP otherwise uses.

Closes GH-7635.

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Merge branch 'PHP-8.0' into PHP-8.1

* PHP-8.0:
Fix bug #81591: ignore_repeated_errors broken

Fix bug #81591: ignore_repeated_errors broken

We should suppress the error if the message is the same, not if
it's different. Apparently we had no test coverage for these
options.

Merge branch 'PHP-8.0' into PHP-8.1

* PHP-8.0:
Fix #81518: Header injection via default_mimetype / default_charset

Merge branch 'PHP-7.4' into PHP-8.0

* PHP-7.4:
Fix #81518: Header injection via default_mimetype / default_charset

Fix #81518: Header injection via default_mimetype / default_charset

We forbid setting these INI options to values containing NUL bytes, CR
or LF.

Closes GH-7574.

Use ASCII lower case for misc case folding

Use ASCII case conversion instead of locale-dependent case conversion in
the following places:

* grapheme_stripos() and grapheme_strri

Use ASCII lower case for misc case folding

Use ASCII case conversion instead of locale-dependent case conversion in
the following places:

* grapheme_stripos() and grapheme_strripos() in the "fast" path
* ldap_get_entries()
* oci_pconnect() for case folding of parameters when constructing a key
into the connection or session pool
* SoapClient: case folding of function names
* get_meta_tags(): case conversion of property names
* http stream wrapper: header names
* phpinfo(): anchor names
* php_verror(): docref URLs
* rfc1867.c: Content-Type boundary parameter name
* streams.c: stream protocol names

Using locale-dependent case folding for these cases is either
unnecessary or actively incorrect. These functions could have
misbehaved when used with certain locales (e.g. Turkish).

Closes GH-7511.

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Don't enable rc_debug mode if module startup fails

Return value from ZEND_ATOL

Instead of assigning it as part of the macro itself, which makes
usage quite awkward.

Merge branch 'PHP-8.0'

* PHP-8.0:
Fix bug #80728: Don't reset the timeout on ini deactivate

Merge branch 'PHP-7.4' into PHP-8.0

* PHP-7.4:
Fix bug #80728: Don't reset the timeout on ini deactivate

Fix bug #80728: Don't reset the timeout on ini deactivate

When the time limit for a script is changed, when the script ends,
its INI value will be reset. This calls the event handler for

Fix bug #80728: Don't reset the timeout on ini deactivate

When the time limit for a script is changed, when the script ends,
its INI value will be reset. This calls the event handler for the
timeout change, which will unset then reset the timeout. However,
this is done even if the script is done executing, and say, the CGI
or CLI web server process is idle.

This is probably incorrect, but isn't a problem on most platforms,
because PHP uses a timer that only ticks when the process is active
(that is, executing code). Since when it's idle, it's blocking on
listen/read, it won't tick because nothing executes. However, on
platforms where only the real-time timer is supported, (Cygwin/PASE)
it ticks regardless of if PHP is even executing. This means that the
idle processes are subject to timeouts from the INI reset on script
end.

This makes it so the timer is never set if the state is deactivating.
Testing with the CLI web server indicates the timer no longer
spuriously activates under PASE.

Closes GH-6683.

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Fixed some spaces used instead of tabs

Merge branch 'PHP-8.0'

* PHP-8.0:
Fixed bug #81104

Merge branch 'PHP-7.4' into PHP-8.0

* PHP-7.4:
Fixed bug #81104

Fixed bug #81104

When the memory limit is restored during shutdown, we may still
be using a lot of memory. Ignore the failure at that point and
set it again after the MM is shut down

Fixed bug #81104

When the memory limit is restored during shutdown, we may still
be using a lot of memory. Ignore the failure at that point and
set it again after the MM is shut down, at which point memory
usage should be at its lowest point.

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