Merge branch 'PHP-8.1'

Merge branch 'PHP-8.0' into PHP-8.1

Revert Fixed bug #79451

The fix for 8.1 and above is not identical and I don't know how to fix without breaking the whole build apparently

Merge branch 'PHP-8.1'

Fix bad merge

Merge branch 'PHP-8.1'

Merge branch 'PHP-8.0' into PHP-8.1

Fix bug #79451: Using DOMDocument->replaceChild on doctype causes double free

Closes GH-9201

Use more compact representation for packed arrays.

- for packed arrays we store just an array of zvals without keys.
- the elements of packed array are accessible throuf as ht->arPacked[

Use more compact representation for packed arrays.

- for packed arrays we store just an array of zvals without keys.
- the elements of packed array are accessible throuf as ht->arPacked[i]
instead of ht->arData[i]
- in addition to general ZEND_HASH_FOREACH_* macros, we introduced similar
familied for packed (ZEND_HASH_PACKED_FORECH_*) and real hashes
(ZEND_HASH_MAP_FOREACH_*)
- introduced an additional family of macros to access elements of array
(packed or real hashes) ZEND_ARRAY_ELEMET_SIZE, ZEND_ARRAY_ELEMET_EX,
ZEND_ARRAY_ELEMET, ZEND_ARRAY_NEXT_ELEMENT, ZEND_ARRAY_PREV_ELEMENT
- zend_hash_minmax() prototype was changed to compare only values

Because of smaller data set, this patch may show performance improvement
on some apps and benchmarks that use packed arrays. (~1% on PHP-Parser)

TODO:
- sapi/phpdbg needs special support for packed arrays (WATCH_ON_BUCKET).
- zend_hash_sort_ex() may require converting packed arrays to hash.

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Fix O(N) performance of DOMNode::replaceChild() and DOMNode::removeChild()

Don't loop over all children to determine if the target node really is a
child, just trust the parent pointer.

Fix O(N) performance of DOMNode::replaceChild() and DOMNode::removeChild()

Don't loop over all children to determine if the target node really is a
child, just trust the parent pointer. Add tests.

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Fixed some spaces used instead of tabs

Use zend_string_equals_* API in a couple of more place

Closes GH-6979

Update http->https in license (#6945)

1. Update: http://www.php.net/license/3_01.txt to https, as there is anyway server header "Location:" to https.
2. Update few license 3.0 to 3.01 as

Update http->https in license (#6945)

1. Update: http://www.php.net/license/3_01.txt to https, as there is anyway server header "Location:" to https.
2. Update few license 3.0 to 3.01 as 3.0 states "php 5.1.1, 4.1.1, and earlier".
3. In some license comments is "at through the world-wide-web" while most is without "at", so deleted.
4. fixed indentation in some files before |

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Refactor dom_has_feature() to use zend_string*

Introduce pseudo-keyword ZEND_FALLTHROUGH

And use it instead of comments

Promote DOM invalid state errors during property access

Closes GH-6780

Replace zend_bool uses with bool

We're starting to see a mix between uses of zend_bool and bool.
Replace all usages with the standard bool type everywhere.

Of course, zend_bool

Replace zend_bool uses with bool

We're starting to see a mix between uses of zend_bool and bool.
Replace all usages with the standard bool type everywhere.

Of course, zend_bool is retained as an alias.

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Promote warnings to error in DOM extension

Closes GH-5418

Remove proto comments from C files

Closes GH-5758

Fix [-Wundef] warning in DOM extension

Generate method entries for ext/dom

Closes GH-5374

Do not include the same stub multiple times

Closes GH-5322

[RFC] Implement new DOM Living Standard APIs in ext/dom

Rename php_dom_create_interator() to php_dom_create_iterator()

Thus fixing an obvious typo.

Merge branch 'PHP-7.4'

* PHP-7.4:
Fix #79271: DOMDocumentType::$childNodes is NULL