Merge branch 'PHP-7.4' into PHP-8.0

Update NEWS

Fix bug #81719: mysqlnd/pdo password buffer overflow

Fix #81720: Uninitialized array in pg_query_params() leading to RCE

We must not free parameters which we haven't initialized yet.

We also fix the not directly related issue, that we

Fix #81720: Uninitialized array in pg_query_params() leading to RCE

We must not free parameters which we haven't initialized yet.

We also fix the not directly related issue, that we checked for the
wrong value being `NULL`, potentially causing a segfault.

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Fix dblib ghtest8626 test.

Follow-up of GH-8628.
Closes GH-9694.

Revert "Fix detection of unknown gcc function attributes"

This reverts commit 813d942bac2b604bb7f6b80aefac6e4aa69b3491.

NEWS for GH-8685

Fix GH-8685 mbstring requires pcre

Fix detection of unknown gcc function attributes

As described in autoconf-archive upstream [1], from where
`build/ax_gcc_func_attribute.m4` is forked, the old unknown func attr
detec

Fix detection of unknown gcc function attributes

As described in autoconf-archive upstream [1], from where
`build/ax_gcc_func_attribute.m4` is forked, the old unknown func attr
detection method would throw a false negative anytime an unrelated
warning was raised.

This results in `ax_cv_have_func_attribute_target` being set to `no`
whenever certain compiler Warning flags are switched on. Namely, having
`-Wall` on, which is a default CFLAG for some linux distributions, will
result in

```
warning: ‘bar’ declared ‘static’ but never defined [-Wunused-function]
```

when evaluating support for the `target` function attribute.

With that configuration value set to `no`, the compiled php binaries
will not support x86_64 v3 instructions such as avx2 and sse2, which
should speed up specific tasks ran by PHP.

This issue was originally reported in Ubuntu [2].

[1] http://git.savannah.gnu.org/gitweb/?p=autoconf-archive.git;a=commitdiff;h=df0894ad1a8195df67a52108b931e07d708cec9a
[2] https://bugs.launchpad.net/ubuntu/+source/php8.1/+bug/1882279
Closes GH-8483.

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Closes GH-8626: Fix PDOStatement->execute() failed.
Then execute successfully, errorInfo() information is incorrect

Fix memory leak

This fixes oss-fuzz #47648

Fixed bug #78139 (timezone_open accepts invalid timezone string argument).

Merge remote-tracking branch 'derickr/bug74671-dst-c-format' into PHP-8.0

Remove trailing whitespace from test

Mark test as XFAIL due to wrong assumptions

Fixed bug #74671 (DST timezone abbreviation has incorrect offset)

Fixed test

Update NEWS

Fixed tests

Fixed bug #72963 (Null-byte injection in CreateFromFormat and related functions)

Fixed bug #76963 (Null-byte injection in createFromFormat)

Bump for 8.0.21

Fix pcntl Haiku build

guarding SIGIO constant.

Closes GH-8612.

Fix GH-8538: SoapClient may strip parts of nmtokens

When stripping the namespace prefix, we can assume that this does not
contain any colons, while the rest of the name may contain colon

Fix GH-8538: SoapClient may strip parts of nmtokens

When stripping the namespace prefix, we can assume that this does not
contain any colons, while the rest of the name may contain colons.
Hence we must not use `strrchr()` but rather `strchr()` instead.

Closes GH-8543.

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Fix undefined behavior in php_set_inet6_addr

Postfix `++` on `NULL` is undefined behavior

Closes GH-8607