Support named items in dimension handling for HTMLCollection

Closes GH-13937.

Split off nodelist header components to nodelist.h

Move node list dimension handling to a separate file

Factor out reading an attribute value

Cleanup and optimize attribute value reading (#13897)

When the attribute has a single text child, we can avoid an allocating
call to libxml2 and read the contents directly.

On m

Cleanup and optimize attribute value reading (#13897)

When the attribute has a single text child, we can avoid an allocating
call to libxml2 and read the contents directly.

On my i7-4790, I tested the optimization with both the $value and
$nodeValue property.

```
Summary
./sapi/cli/php bench_value.php ran
1.82 ± 0.09 times faster than ./sapi/cli/php_old bench_value.php

Summary
./sapi/cli/php bench_nodeValue.php ran
1.78 ± 0.10 times faster than ./sapi/cli/php_old bench_nodeValue.php
```

Test code:
```
$dom = new DOMDocument;
$dom->loadXML('<root attrib="this is a relatively short text"/>');
$attrib = $dom->documentElement->attributes[0];

for ($i=0; $i<1000*1000; $i++) {
$attrib->value; // or nodeValue
}
```

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Remove redundant namespace define

Use BAD_CAST consistently

Change stricterror type to bool

Simplify DOM_RET_OBJ macro

Cleanup php_dom_create_object()

[RFC] Add a way to opt-in ext/dom spec compliance (#13031)

RFC: https://wiki.php.net/rfc/opt_in_dom_spec_compliance

Fix reference access in dimensions for DOMNodeList and DOMNodeMap

Closes GH-13511.

Mark DOMXPath as uncloneable

This never resulted in a working XPath object anyway, as trying to query
or evaluate anything resulted in an "Invalid XPath context" error.
Supporting th

Mark DOMXPath as uncloneable

This never resulted in a working XPath object anyway, as trying to query
or evaluate anything resulted in an "Invalid XPath context" error.
Supporting this is more trouble than it's worth, so just block the clone
operation.

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Use bools

Don't use heap allocations for registering DOM property handlers

Cleanup useless stuff in php_dom.c

[RFC] Improve callbacks in ext/dom and ext/xsl (#12627)

Remove unused includes of php_random.h (#13131)

Before this change php_random.h was listed in 146 different *.dep files for a

env CC=clang ./configure --without-sqlite3 --withou

Remove unused includes of php_random.h (#13131)

Before this change php_random.h was listed in 146 different *.dep files for a

env CC=clang ./configure --without-sqlite3 --without-pdo-sqlite

build, after this change it's only listed in 110 of them, preventing uselessly
recompiling those files when working on ext/random, mostly caused by the include
in ext/standard/basic_functions.h.

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Fix GH-12870: Creating an xmlns attribute results in a DOMException

There were multiple things here since forever, see the GH thread [1]
for discussion.

There were already many

Fix GH-12870: Creating an xmlns attribute results in a DOMException

There were multiple things here since forever, see the GH thread [1]
for discussion.

There were already many fixes to this function previously, and as a
consequence of one of those fixes this started throwing exceptions for a
correct use-case. It turns out that even when reverting to the previous
behaviour there are still bugs. Just fix all of them while we have the
chance.

[1] https://github.com/php/php-src/issues/12870

Closes GH-12888.

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ext/dom: Use zend_hash_add_new variant when registering classes and properties

[RFC] DOM HTML5 parsing and serialization support (#12111)

Fix cloning attribute with namespace disappearing namespace

Closes GH-12547.

Cleanup unused variable in php_dom.c (#12463)

Restore old namespace reconciliation behaviour

The xmlDOMWrapReconcileNamespaces method we used to fix the namespace
corruption issues in 8.1.21/8.2.8 caused regressions.
Primarily,

Restore old namespace reconciliation behaviour

The xmlDOMWrapReconcileNamespaces method we used to fix the namespace
corruption issues in 8.1.21/8.2.8 caused regressions.
Primarily, there is a similar corruption that the xmlReconciliateNs method
used to have in which a namespace is suddenly shifted
(SAML-Toolkits/php-saml#562) and the side-effect of removing redundant
namespaces causes problems when a specific serialization is required.

Closes GH-12308.

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Use zend_result as return for properties in ext/dom (#12113)