Fix #69264: __debugInfo() ignored while extending SPL classes

We actually implement `::__debugInfo()` and drop the `get_debug_info()`
handlers of all relevant SPL classes. This is clean

Fix #69264: __debugInfo() ignored while extending SPL classes

We actually implement `::__debugInfo()` and drop the `get_debug_info()`
handlers of all relevant SPL classes. This is cleaner and gives more
flexibility regarding overriding the functionality in descendant
classes.

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Fix #75673: SplStack::unserialize() behavior

Even though `SplStack::unserialize()` is not supposed to be called on
an already constructed instance, it is probably better if the method

Fix #75673: SplStack::unserialize() behavior

Even though `SplStack::unserialize()` is not supposed to be called on
an already constructed instance, it is probably better if the method
clears the stack before actually unserializing.

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Fixed bug #79151

Make sure we also NULL out next/prev of the removed element on
pop/shift. This only matter is that element is still being referenced
by an iterator.

Fixed bug #78456

Replace ZVAL_COPY() and ZVAL_COPY_VALUE() for IS_OBJECT by cheaper macros

Fixed some arg infos to match documentation

Fix bug #77866: Port Serializable SPL classes to use __unserialize()

Payloads created using Serializable are still supported.

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

Use ZEND_THIS macro to hide implementation details in extensions code.

Replace getThis() by EX(This), when additional check is not necessary.

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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Uze ZVAL_COPY_DEREF() instead of ZVAL_DEREF() and ZVAL_COPY()

Export standard object handlers, to avoid indirect access

Removed useless zval_ptr_dtor()

Use zend_string_release_ex() instread of zend_string_release() in places, where we sure about string persistence.

year++

year++

year++

Move zend_object_iterator_funcs structures into read-only data segment

Add zend_object_alloc() API

Using ecalloc() to create objects is expensive, because the
dynamic-size memset() is unreasonably slow. Make sure we only
zero the main object structure w

Add zend_object_alloc() API

Using ecalloc() to create objects is expensive, because the
dynamic-size memset() is unreasonably slow. Make sure we only
zero the main object structure with known size, as the properties
are intialized separately anyway.

Technically we do not need to zero the embedded zend_object
structure either, but as long as the memset argument is constant,
a couple more bytes don't really matter.

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RC manipulation cleanup 2

Compiler warning

Fixed bug #73629 (SplDoublyLinkedList::setIteratorMode masks intern flags)

We must not overwrite the SPL_DLLIST_IT_FIX flag when changing the
iterator mode.

Refactored array creation API. array_init() and array_init_size() are converted into macros calling zend_new_array(). They are not functions anymore and don't return any values.