Add max_depth option to unserialize()

Add a max_depth option to unserialize and an unserialize_max_depth
ini setting, which can be used to control the depth limit. The
default value

Add max_depth option to unserialize()

Add a max_depth option to unserialize and an unserialize_max_depth
ini setting, which can be used to control the depth limit. The
default value is 4096.

This option is intended to prevent stack overflows during the
unserialization of deeply nested structures.

This fixes bug #78549 and addresses oss-fuzz #17581, #17589, #17664,
and #17788.

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Enable display_startup_errors by default

Document opcache.preload_user directive

Make error_reporting=E_ALL the default

add ffi to php.ini extension [ci skip]

Allow multiple cache instances per user/host on Windows

Formerly, there was at most a single OPcache instance per user and the
so called system ID (which is determined from the PHP versi

Allow multiple cache instances per user/host on Windows

Formerly, there was at most a single OPcache instance per user and the
so called system ID (which is determined from the PHP version).
Sometimes multiple OPcaches might be desired, though, particularly for
unrelated CLI scripts, which may even be necessary (e.g. for our test
suite in parallel mode).

We therefore introduce a new INI directive `opcache.cache_id` which
allows to configure independent OPcache instances for the same user.

We also use `GetUserNameW()` instead of `php_win32_get_username()`,
because the latter retrieves the user name encoded in the
`default_charset`, which can obviously yield different results for
different charsets, leading to OPcache "incompatibilities". Slightly
worse, some characters may not even be encodeable in the
`default_charset` and would be replaced by question marks, which could
result in different users sharing the same OPcache.

We also refactor, and re-use existing APIs to avoid duplicated code.

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Fix #65547: Default value for sunrise/sunset zenith still wrong

The value of the zenith angle to calculate sunrise and sunset times is
commonly defined as 90°50', and is "obtained by add

Fix #65547: Default value for sunrise/sunset zenith still wrong

The value of the zenith angle to calculate sunrise and sunset times is
commonly defined as 90°50', and is "obtained by adding the average
apparent radius of the Sun (16') to the average amount of atmospheric
refraction at the horizon (34')", according to
http://aa.usno.navy.mil/faq/docs/RST_defs.php.

This value is also used for the Sunrise/Sunset Algorithm published in
the Almanac for Computers, 1990, see
https://web.archive.org/web/20161202180207/http://williams.best.vwh.net/sunrise_sunset_algorithm.htm.

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simple ignore arguments in exceptions implementation

Add syslog.filter=raw

This passes through syslog message unchanged, without splitting
messages at newlines.

Remove some more interbase leftovers

Remove html_errors from INI Quick Reference as INI values are identical to Engine values

s/mysql_connect()/mysqli_connect() in php.ini

Add opcache.lockfile_path and opcache.lockfile_path to ini settings

Some default opcache settings were missing.

Add mbstring.regex_stack_limit to php.ini-*

comment out sqlite3.defensive = 1
follow common practice, this is the default value

Fix #76956: Wrong value for 'syslog.filter' documented in php.ini

SQLite3: add DEFENSIVE config for SQLite >= 3.26.0 as a mitigation strategy against potential security flaws

SQLite3: add DEFENSIVE config for SQLite >= 3.26.0 as a mitigation strategy against potential security flaws

Removed pdo_odbc.db2_instance_name

Remove local variables

This patch removes the so called local variables defined per
file basis for certain editors to properly show tab width, and
similar settings. These are mainly

Remove local variables

This patch removes the so called local variables defined per
file basis for certain editors to properly show tab width, and
similar settings. These are mainly used by Vim and Emacs editors
yet with recent changes the once working definitions don't work
anymore in Vim without custom plugins or additional configuration.
Neither are these settings synced across the PHP code base.

A simpler and better approach is EditorConfig and fixing code
using some code style fixing tools in the future instead.

This patch also removes the so called modelines for Vim. Modelines
allow Vim editor specifically to set some editor configuration such as
syntax highlighting, indentation style and tab width to be set in the
first line or the last 5 lines per file basis. Since the php test
files have syntax highlighting already set in most editors properly and
EditorConfig takes care of the indentation settings, this patch removes
these as well for the Vim 6.0 and newer versions.

With the removal of local variables for certain editors such as
Emacs and Vim, the footer is also probably not needed anymore when
creating extensions using ext_skel.php script.

Additionally, Vim modelines for setting php syntax and some editor
settings has been removed from some *.phpt files. All these are
mostly not relevant for phpt files neither work properly in the
middle of the file.

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Remove special treatment of strings in asserts

This was deprecated in PHP 7.2 as part of
https://wiki.php.net/rfc/deprecations_php_7_2.

Remove mbstring.func_overload

Deprecated in PHP 7.2 as part of
https://wiki.php.net/rfc/deprecations_php_7_2.

Remove track_errors and $php_errormsg

This has been deprecated in PHP 7.2 as part of
https://wiki.php.net/rfc/deprecations_php_7_2.

[ci skip] Add opcache.preload directive

document open_basedir and realpath cache coupling in php.ini

[ci skip]