Fix incorrectly optimized out live range

For x ? y : z style structures, the live range starts at z, but
may also hold the value of y. Make sure that the refcounting check
takes this

Fix incorrectly optimized out live range

For x ? y : z style structures, the live range starts at z, but
may also hold the value of y. Make sure that the refcounting check
takes this into account, by checking the type of a potential phi
user.

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Fixed bug #80083

Add db2_execute() to the list of functions accessing the local
scope. Ideally the API wouldn't do that, but it seems most
pragmatic to address this on the opcache si

Fixed bug #80083

Add db2_execute() to the list of functions accessing the local
scope. Ideally the API wouldn't do that, but it seems most
pragmatic to address this on the opcache side at this point.

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Fixed bug #79535

We did not allocate a cache slot for FETCH_CLASS. This is already
fixed on newer PHP versions.

Fix handling of non-final loop var free in sccp

We only need to preserve the FE_FREE that marks the end of the
loop range. Skip FE_FREEs with the FREE_ON_RETURN flag.

ZEND_DECLARE_ANON_CLASS doesn't need to skip anything now. It's immediatelly followed by ZEND_NEW.

Replace ZEND_ASSIGN_ADD (and others) by ZEND_ASSIGN_OP, ZEND_ASSIGN_DIM_OP, ZEND_ASSGIN_OBJ_OP and ZEND_ASSIGN_STATIC_PROP_OP

Register class before fetching parent

We want the class declaration to be available while compiling the
parent class.

Check for USER_FUNCTION

Remove copyright years.

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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Implement ??= operator

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

$a ??= $b is $a ?? ($a = $b), with the difference that $a is only
evaluated once, to the degree

Implement ??= operator

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

$a ??= $b is $a ?? ($a = $b), with the difference that $a is only
evaluated once, to the degree that this is possible. In particular
in $a[foo()] ?? $b function foo() is only ever called once.
However, the variable access themselves will be reevaluated.

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Avoid double live ranges recalculation.

Live ranges construction optimization

Implement single-pass live range calculation

Instead of interleaving creation of live-ranges with the main
compiler code, compute them in a separate pass over the opcodes
as part of

Implement single-pass live range calculation

Instead of interleaving creation of live-ranges with the main
compiler code, compute them in a separate pass over the opcodes
as part of pass_two. Additionally, do not keep live ranges
synchronized during optimization in opcache and instead use the
same mechanism to recompute them after optimization.

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Implement typed properties

RFC: https://wiki.php.net/rfc/typed_properties_v2

This is a squash of PR #3734, which is a squash of PR #3313.

Co-authored-by: Bob Weinand <bobwe

Implement typed properties

RFC: https://wiki.php.net/rfc/typed_properties_v2

This is a squash of PR #3734, which is a squash of PR #3313.

Co-authored-by: Bob Weinand <bobwei9@hotmail.com>
Co-authored-by: Joe Watkins <krakjoe@php.net>
Co-authored-by: Dmitry Stogov <dmitry@zend.com>

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Incase of invalid read

Make operator swapping depend on IGNORE_OVERLOADING flag

Add MUL back to the list and instead make the entire optimization
depend on IGNORE_OVERLOADING, which is there exactly so we can

Make operator swapping depend on IGNORE_OVERLOADING flag

Add MUL back to the list and instead make the entire optimization
depend on IGNORE_OVERLOADING, which is there exactly so we can make
these kinds of assumptions.

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Fixed bug #77266 (Assertion failed in dce_live_ranges)

Respect static method visibility

Fixed bug #77275

Instead of juggling with this problem during literal compaction,
make sure that we always initialize Z_EXTRA for literals, which
seems like the more robust solution.

Fixed issues related to optimization and persitence of classes linked with interfaces, traits or internal classes.

Future-proof email addresses

Future-proof email addresses...

Keep original value of "prototype"

Reslove inherited op_array references once afrer all optimizations.