Fix #79986: str_ireplace bug with diacritics characters

`tolower()` returns an `int`, so we must not convert to `char` which
may be `signed` and as such may be subject to overflow (actua

Fix #79986: str_ireplace bug with diacritics characters

`tolower()` returns an `int`, so we must not convert to `char` which
may be `signed` and as such may be subject to overflow (actually,
implementation defined behavior).

Closes GH-6007

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Fixed bug #79951

One branch did not release tmp_replace_entry_str.

Also reduce the scope of some variables.

Fixed bug #79849

Closes GH-5853.

Fixed bug #79817

Use *_IND macros in a few places in string.c.

Yet another check for php_strip_tags_ex()

More checks for php_strip_tags_ex

Fix #79099: OOB read in php_strip_tags_ex

Fix #78814: strip_tags allows / in tag name => whitelist bypass

When normalizing tags to check whether they are contained in the set
of allowable tags, we must not strip slashes, unless

Fix #78814: strip_tags allows / in tag name => whitelist bypass

When normalizing tags to check whether they are contained in the set
of allowable tags, we must not strip slashes, unless they come
immediately after the opening `<`, or immediately before the closing
`>`.

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Fix #78840: imploding $GLOBALS crashes

We add support for IS_INDIRECT zvals to implode().

Fixed bug #78612

Fix #78346: strip_tags no longer handling nested php tags

When the strip tags state machine has been flattened, an if statement
has mistakenly been treated as else if. We fix this, and

Fix #78346: strip_tags no longer handling nested php tags

When the strip tags state machine has been flattened, an if statement
has mistakenly been treated as else if. We fix this, and also simplify
a bit right away.

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Fix #77937: preg_match failed

On some recent Windows systems, ext\pcre\tests\locales.phpt fails,
because 'pt_PT' is accepted by `setlocale()`, but not properly
supported by the ctype

Fix #77937: preg_match failed

On some recent Windows systems, ext\pcre\tests\locales.phpt fails,
because 'pt_PT' is accepted by `setlocale()`, but not properly
supported by the ctype functions, which are used internally by PCRE2 to
build the localized character tables.

Since there appears to be no way to properly check whether a given
locale is fully supported, but we want to minimize BC impact, we filter
out typical Unix locale names, except for a few cases which have
already been properly supported on Windows. This way code like

setlocale(LC_ALL, 'de_DE.UTF-8', 'de_DE', 'German_Germany.1252');

should work like on older Windows systems.

It should be noted that the locale names causing trouble are not (yet)
documented as valid names anyway, see
<https://docs.microsoft.com/en-us/cpp/c-runtime-library/locale-names-languages-and-country-region-strings?view=vs-2019>.

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Fix #78003: strip_tags output change since PHP 7.3

A refactoring of the strip tags state machine[1] missed the special
treatment of `depth > 0` when a `>` is encountered in state 2 or 3.

Fix #78003: strip_tags output change since PHP 7.3

A refactoring of the strip tags state machine[1] missed the special
treatment of `depth > 0` when a `>` is encountered in state 2 or 3. We
re-add it for BC reasons.

[1] <http://git.php.net/?p=php-src.git;a=commit;h=5cf64742773ddbf9af69d962a4d12b567fcf0084>

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Fixed bug #77853

Add additional no_sanitize_address attributes

To fix bug #77447 in release mode as well.

Future-proof email addresses

Trim trailing whitespace in source code files

Remove unused Git attributes ident

The $Id$ keywords were used in Subversion where they can be substituted
with filename, last revision number change, last changed date, and last
use

Remove unused Git attributes ident

The $Id$ keywords were used in Subversion where they can be substituted
with filename, last revision number change, last changed date, and last
user who changed it.

In Git this functionality is different and can be done with Git attribute
ident. These need to be defined manually for each file in the
.gitattributes file and are afterwards replaced with 40-character
hexadecimal blob object name which is based only on the particular file
contents.

This patch simplifies handling of $Id$ keywords by removing them since
they are not used anymore.

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Deprecate non-string needles in string search functions

Part of https://wiki.php.net/rfc/deprecations_php_7_3.

Flatten strip_tags state machine (GCC overoptimized this function, producing enormpous amount of code).

Uze ZVAL_COPY_DEREF() instead of ZVAL_DEREF() and ZVAL_COPY()

str_replace() micro-optimization

Changed php_add[c]slashes prototypes (removed should_free argument)

Use zend_string_release_ex() instread of zend_string_release() in places, where we sure about string persistence.

Avoid useless checks, using zend_string_efree(), in cases where the string is known to be a temporary allocated zend_string.