Warning promotion: Throw on writing invalid XML tag names

This change throws a ValueError when an invalid tag name is passed
to XMLWriter.

The rationale is that this indicates a

Warning promotion: Throw on writing invalid XML tag names

This change throws a ValueError when an invalid tag name is passed
to XMLWriter.

The rationale is that this indicates a programming error because
tag names typically originate from string literals or application
code generating them. This translates into either a typo or a flaw
in tag generation logic.

Closes GH-6233.

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Fix UNKNOWN default values in various extensions

Closes GH-6075

Promote warnings to exceptions in ext/soap and ext/xmlwriter

Closes GH-5998

Throw Error on uninitialized XMLWriter

Remove proto comments from C files

Closes GH-5758

FR #79344: xmlwriter_write_attribute_ns: $prefix should be nullable

The `$prefix` parameter of `xmlwriter_write_element_ns()` and
`xmlwriter_start_element_ns()` is nullable, what allows

FR #79344: xmlwriter_write_attribute_ns: $prefix should be nullable

The `$prefix` parameter of `xmlwriter_write_element_ns()` and
`xmlwriter_start_element_ns()` is nullable, what allows these functions
to be used instead of their non NS variants. Consequently, we make the
`$prefix` parameter of `xmlwriter_write_attribute_ns()` and
`xmlwriter_start_attribute_ns()` nullable as well.

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Generate function entries from stubs for a couple of extensions

Migrates ext/standard, ext/tidy, ext/tokenizer,
ext/xml, ext/xml_reader, and ext/xml_writer. Closes GH-5381.

Fix #79191: Error in SoapClient ctor disables DOMDocument::save()

The culprit is the too restrictive fix for bug #71536, which prevents
`php_libxml_streams_IO_write()` from properly exec

Fix #79191: Error in SoapClient ctor disables DOMDocument::save()

The culprit is the too restrictive fix for bug #71536, which prevents
`php_libxml_streams_IO_write()` from properly executing when unclean
shutdown is flagged. A *more* suitable solution is to move the
`xmlwriter_free_resource_ptr()` call from the `free_obj` handler to an
added `dtor_obj` handler, to avoid to write to a closed stream in case
of late object freeing. This makes the `EG(active)` guard superfluous.

We also fix bug79029.phpt which has to use different variables for the
three parts to actually check the original shutdown issue.

Thanks to bwoebi and daverandom for helping to investigate this issue.

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Use RETURN_THROWS() after zend_parse_method_parameters()

Use RETURN_THROWS() during ZPP in most of the extensions

Except for some bigger ones: reflection, sodium, spl

Fixed bug #79029 (Use After Free's in XMLReader / XMLWriter).

We backport the fix PHP 7.3, since this branch is affected as well.

(cherry picked from commit b5e004379647bd1ebb75eb2e

Fixed bug #79029 (Use After Free's in XMLReader / XMLWriter).

We backport the fix PHP 7.3, since this branch is affected as well.

(cherry picked from commit b5e004379647bd1ebb75eb2eac8826fb6abdd3d8)
(cherry picked from commit e36daa6927c05d2e687bb77495ef206cde118b33)
(cherry picked from commit 2704ee6844c03348de9d15e74646d09007ef0f7c)

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Partial fix for bug #79029

Remove mention of PHP major version in Copyright headers

Closes GH-4732.

Employ zend_parse_method_parameters()

Change XMLWriter resources to objects

While we generally prefer objects over resources for quite a while, the
procedural XMLWriter API still uses resources, although there is
already

Change XMLWriter resources to objects

While we generally prefer objects over resources for quite a while, the
procedural XMLWriter API still uses resources, although there is
already an object-oriented API which uses objects. This dichotomy
makes no sense, slightly complicates the implementation, and doesn't
allow a stepwise migration to the object-oriented API, which might be
desired. Thus we completely drop the XMLWriter resources in favor of
XMLWriter objects.

We consider the minor BC break acceptable for a major version, since
only explicit type checks (`is_resource()`, `gettype()` etc.) need to
be adapted.

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Add missing argument checks

These functions don't expect any arguments, so we check that none are
given.

Don't explicitly set return value on ZFR failure in ext/xmlwriter

Failing `zend_fetch_resource(2)` throws as of PHP 8.0.0, so explicitly
setting a return value is useless, and also sligh

Don't explicitly set return value on ZFR failure in ext/xmlwriter

Failing `zend_fetch_resource(2)` throws as of PHP 8.0.0, so explicitly
setting a return value is useless, and also slightly confusing.

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Add ext/xmlwriter stubs

Use zend_parse_parameters_none() in XmlWriter::openMemory()

And fix incorrect uses in tests

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 yearly range from copyright notice

Remove year range from copyright notice

Bump minimum libxml version to 2.7.6

Released Oct 2009, part of RHEL 6.

Remove checks for libxml < 2.6.11

These are below our minimum version requirement.

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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