Fix GH-15137: Unexpected null pointer in Zend/zend_smart_str.h (#15138)

This regressed when I optimized $wholeText. The previous code used xmlStrcat
which implicitly checked for a NULL a

Fix GH-15137: Unexpected null pointer in Zend/zend_smart_str.h (#15138)

This regressed when I optimized $wholeText. The previous code used xmlStrcat
which implicitly checked for a NULL argument, but now it's a direct memcpy
which you shouldn't pass null pointers to, although it won't result in a
crash because memcpy doesn't do anything if the length is 0.

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Optimize ext/dom $wholeText (#15001)

Use our own string builder instead of using libxml's and then having to
copy over.

For the following test:
```
$dom = Dom\HTMLDocume

Optimize ext/dom $wholeText (#15001)

Use our own string builder instead of using libxml's and then having to
copy over.

For the following test:
```
$dom = Dom\HTMLDocument::createEmpty();
$root = $dom->appendChild($dom->createElement('root'));
$root->append('abc', 'def', 'ghi');
$f = $root->firstChild;

for ($i = 0; $i < 1000000; $i++)
$f->wholeText;
```

The following results were obtained on an i7-4790:
```
Benchmark 1: ./sapi/cli/php x.php
Time (mean ± σ): 57.2 ms ± 2.3 ms [User: 53.2 ms, System: 3.4 ms]
Range (min … max): 54.7 ms … 69.3 ms 52 runs

Benchmark 2: ./sapi/cli/php_old x.php
Time (mean ± σ): 89.4 ms ± 3.4 ms [User: 85.6 ms, System: 3.0 ms]
Range (min … max): 86.1 ms … 105.8 ms 32 runs

Summary
./sapi/cli/php x.php ran
1.56 ± 0.09 times faster than ./sapi/cli/php_old x.php
```

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Resolve TODOs in ext/dom around nullable content (#14999)

It's indeed possible this is NULL. When you create a new text-like node
in libxml and pass NULL as content, you do get NULL in t

Resolve TODOs in ext/dom around nullable content (#14999)

It's indeed possible this is NULL. When you create a new text-like node
in libxml and pass NULL as content, you do get NULL in the content field
instead of the empty string. You can hit this by creating DOMText or
DOMComment directly and not passing any argument. This could also be
created internally.
We refactor the code such that this detail is hidden and we add a test
to check that it correctly throws an exception.

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Preferably include from build dir (#13516)

* Include from build dir first

This fixes out of tree builds by ensuring that configure artifacts are included
from the build dir.

Preferably include from build dir (#13516)

* Include from build dir first

This fixes out of tree builds by ensuring that configure artifacts are included
from the build dir.

Before, out of tree builds would preferably include files from the src dir, as
the include path was defined as follows (ignoring includes from ext/ and sapi/) :

-I$(top_builddir)/main
-I$(top_srcdir)
-I$(top_builddir)/TSRM
-I$(top_builddir)/Zend
-I$(top_srcdir)/main
-I$(top_srcdir)/Zend
-I$(top_srcdir)/TSRM
-I$(top_builddir)/

As a result, an out of tree build would include configure artifacts such as
`main/php_config.h` from the src dir.

After this change, the include path is defined as follows:

-I$(top_builddir)/main
-I$(top_builddir)
-I$(top_srcdir)/main
-I$(top_srcdir)
-I$(top_builddir)/TSRM
-I$(top_builddir)/Zend
-I$(top_srcdir)/Zend
-I$(top_srcdir)/TSRM

* Fix extension include path for out of tree builds

* Include config.h with the brackets form

`#include "config.h"` searches in the directory containing the including-file
before any other include path. This can include the wrong config.h when building
out of tree and a config.h exists in the source tree.

Using `#include <config.h>` uses exclusively the include path, and gives
priority to the build dir.

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Get rid of unused declarations

Use common helper macro for getting the node in property handlers

Use BAD_CAST consistently

Use true instead of 1 with php_dom_throw_error

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

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

Handle libxml2 OOM more consistently (#11927)

This is a continuation of commit c2a58ab07d, in which several OOM error
handling was converted to throwing an INVALID_STATE_ERR DOMException

Handle libxml2 OOM more consistently (#11927)

This is a continuation of commit c2a58ab07d, in which several OOM error
handling was converted to throwing an INVALID_STATE_ERR DOMException.
Some places were missed and they still returned false without an
exception, or threw a PHP_ERR DOMException.
Convert all of these to INVALID_STATE_ERR DOMExceptions. This also
reduces confusion of users going through documentation [1].

Unfortunately, not all node creations are checked for a NULL pointer.
Some places therefore will not do anything if an OOM occurs (well,
except crash).
On the one hand it's nice to handle these OOM cases.
On the other hand, this adds some complexity and it's very unlikely to
happen in the real world. But then again, "unlikely" situations have
caused trouble before. Ideally all cases should be checked.

[1] https://github.com/php/doc-en/issues/1741

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

Fix manually calling __construct() on DOM classes

Closes GH-11894.

Avoid allocation when getting the node content, if possible

Closes GH-11543.

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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Promote DOM invalid state errors during property access

Closes GH-6780

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

Use RETURN_THROWS() during ZPP in the date, dba and dom extensions

ext/dom: Replace usages of PHP_FUNCTION and aliases with PHP_METHOD.

Convert ext/dom to use arginfo stub.

zend_parse_parameters_throw() is obsolete

Since `zend_parse_parameters()` throws now, there is no reason to
explicitly call `zend_parse_parameters_throw()` anymore, and since both
ha

zend_parse_parameters_throw() is obsolete

Since `zend_parse_parameters()` throws now, there is no reason to
explicitly call `zend_parse_parameters_throw()` anymore, and since both
have actually the same implementation, we redefine the latter as macro.

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Remove mention of PHP major version in Copyright headers

Closes GH-4732.