[skip ci] Add comments as to why no ZPP union type format is used

Implement GH-9826: Make class_alias() work with internal classes (#10483)

We can't increase the refcount of internal classes during request time.
To work around this problem we simply do

Implement GH-9826: Make class_alias() work with internal classes (#10483)

We can't increase the refcount of internal classes during request time.
To work around this problem we simply don't refcount aliases anymore and
add a check in the destruction to skip aliases entirely.
There were also some checks which checked for an alias implicitly by
comparing the refcount, these have been replaced by checking the type of
the zval instead.

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Fix lineno for all constant expressions

Fixes GH-8821
Closes GH-8855

Fix GH-8329 Print true/false instead of bool in error and debug messages (#8385)

Fix GH-10200: zif_get_object_vars: Assertion `!(((__ht)->u.flags & (1<<2)) != 0)' failed.

This occurs because the array of properties is a single element with an
integer key, not an asso

Fix GH-10200: zif_get_object_vars: Assertion `!(((__ht)->u.flags & (1<<2)) != 0)' failed.

This occurs because the array of properties is a single element with an
integer key, not an associative array. Therefore it is a packed array
and thus the assumption the iteration macro makes is invalid.

This restores the behaviour of PHP<8.2.

Closes GH-10209

Co-authored-by: Deltik <deltik@gmx.com>

Signed-off-by: George Peter Banyard <girgias@php.net>

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Fix GH-10200: zif_get_object_vars: Assertion `!(((__ht)->u.flags & (1<<2)) != 0)' failed.

This occurs because the array of properties is a single element with an
integer key, not an asso

Fix GH-10200: zif_get_object_vars: Assertion `!(((__ht)->u.flags & (1<<2)) != 0)' failed.

This occurs because the array of properties is a single element with an
integer key, not an associative array. Therefore it is a packed array
and thus the assumption the iteration macro makes is invalid.

This restores the behaviour of PHP<8.2.

Closes GH-10209

Co-authored-by: Deltik <deltik@gmx.com>

Signed-off-by: George Peter Banyard <girgias@php.net>

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Remove unnecessary usage of CONST_CS

Closes GH-9685.

Add four extra fields to gc_status() (#9336)

- running: true if garbage collection is currently running
- protected: true if the garbage collector is protected and root
additions a

Add four extra fields to gc_status() (#9336)

- running: true if garbage collection is currently running
- protected: true if the garbage collector is protected and root
additions are forbidden
- full: true if the garbage collector buffer size exceeds GC_MAX_BUF_SIZE
- buffer_size: current garbage collector buffer size

Documentation for existing fields:

- runs: the number of times the garbage collector has been run
- collected: the number of objects collected
- threshold: the number of roots in the buffer which will trigger
garbage collection
- roots: the current number of roots in the buffer

Updated manual example output:

array(8) {
["running"]=>
bool(false)
["protected"]=>
bool(false)
["full"]=>
bool(false)
["runs"]=>
int(5)
["collected"]=>
int(100002)
["threshold"]=>
int(50001)
["buffer_size"]=>
int(131072)
["roots"]=>
int(0)
}

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Fix debug backtrace frameno (#8761)

Support the `#[\AllowDynamicProperties]` attribute in stubs (#8776)

* Support the `#[\AllowDynamicProperties]` attribute in stubs

* Use `#[\AllowDynamicProperties]` attribute in stu

Support the `#[\AllowDynamicProperties]` attribute in stubs (#8776)

* Support the `#[\AllowDynamicProperties]` attribute in stubs

* Use `#[\AllowDynamicProperties]` attribute in stubs

* Disallow applying both `@strict-properties` and `#[\AllowDynamicProperties]`

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Implement the "Redacting parameters in back traces" RFC

https://wiki.php.net/rfc/redact_parameters_in_back_traces

Deprecate implicit dynamic properties

Writing to a proprety that hasn't been declared is deprecated,
unless the class uses the #[AllowDynamicProperties] attribute or
defines __get()/

Deprecate implicit dynamic properties

Writing to a proprety that hasn't been declared is deprecated,
unless the class uses the #[AllowDynamicProperties] attribute or
defines __get()/__set().

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

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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 backtraces with overridden zend_execute_ex

Simplify zend_forbid_dynamic_call() (#7443)

The special cases (parse_str/mb_parse_str with a single argument) have been removed completely, we can simplify it now.

Add RETURN/RETVAL_COPY_DEREF() macros

These were missing from the set...

I think quite a few of these usages don't actually need the DEREF,
but I've just kept things as is for n

Add RETURN/RETVAL_COPY_DEREF() macros

These were missing from the set...

I think quite a few of these usages don't actually need the DEREF,
but I've just kept things as is for now.

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Remove leading underscore for _zend_hash_find_known_hash (#7260)

Convert zend_hash_find_ex(..., 1) to zend_hash_find_known_hash(...)
Convert zend_hash_find_ex(..., 0) to zend_hash_find(.

Remove leading underscore for _zend_hash_find_known_hash (#7260)

Convert zend_hash_find_ex(..., 1) to zend_hash_find_known_hash(...)
Convert zend_hash_find_ex(..., 0) to zend_hash_find(...)

Also add serializable changes to UPGRADING.INTERNALS summary

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Allow objects in define()

This was separately discussed in https://externals.io/message/114863,
but also necessary for consistency now that
https://wiki.php.net/rfc/new_in_initialize

Allow objects in define()

This was separately discussed in https://externals.io/message/114863,
but also necessary for consistency now that
https://wiki.php.net/rfc/new_in_initializers has landed.

Closes GH-7149.

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Fixed some spaces used instead of tabs

Revert "Fix bug #24214 implement access to skip_last in user API for backtrace"

This reverts commit a5cef84de8473088ad549e3724127c81b907c49d.

Fix bug #24214 implement access to skip_last in user API for backtrace

Fix #77627 method_exists on Closure::__invoke

Use common formatting for backtraces (#6977)

This makes debug_print_backtrace() use the same formatting as exception
backtraces. The only difference is that the final #{main} is omitted,

Use common formatting for backtraces (#6977)

This makes debug_print_backtrace() use the same formatting as exception
backtraces. The only difference is that the final #{main} is omitted,
because it wouldn't make sense for limited backtraces, and wasn't there
previously either.

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Slightly clean up error_reporting() implementation

zend_long_to_str() cannot throw, and we don't really need the
do/while block either.

Handle debug_print_backtrace() from main script

If there is nothing to print, the smart_str will hold a nullptr.

Fixes oss-fuzz #33334.