Merge branch 'PHP-8.0'

* PHP-8.0:
Fix VAR return type verification

Fix VAR return type verification

We should also set retval_ref when de-indirecting. Otherwise the
retval_ref != retval_ptr comparison below may incorrect assume
that we're returning

Fix VAR return type verification

We should also set retval_ref when de-indirecting. Otherwise the
retval_ref != retval_ptr comparison below may incorrect assume
that we're returning a reference.

I don't have a reliable reproducer for this issue, but it sometimes
appears in certain configurations in arrow_functions/007.phpt in
conjunction with other changes.

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Add missing resource key warning for unset()

It was present on other operations, including isset(), but was
missing for unset().

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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PHP array cannot refer to EG(symbol_table) any more. Replace corresponding checks by ZEND_ASSERT().

Remove some INDIRECT handling in VM

Restrict allowed usages of $GLOBALS

This restricts allowed usage of $GLOBALS, with the effect that
plain PHP arrays can no longer contain INDIRECT elements.

RFC: https://wiki.ph

Restrict allowed usages of $GLOBALS

This restricts allowed usage of $GLOBALS, with the effect that
plain PHP arrays can no longer contain INDIRECT elements.

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

Closes GH-6487.

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Provide unused retvals to observers

Make sure that the return value is available to observers, even if
it is not used by the caller.

Closes GH-6422.

[Observer] Save opline before calling begin/end handlers

Fix handling of throwing undef var in verify return

If we have an undefined variable and null is not accepted by the
return type, we want to throw just the undef var error.

In t

Fix handling of throwing undef var in verify return

If we have an undefined variable and null is not accepted by the
return type, we want to throw just the undef var error.

In this case this lead to an infinite loop, because we overwrite
the exception opline in SAVE_OPLINE and it does not get reset
when chaining into a previous exception. Add an assertiong to
catch this case earlier.

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Merge branch 'PHP-7.4' into PHP-8.0

* PHP-7.4:
Avoid non-object in FE_FREE

Avoid non-object in FE_FREE

Even if the properties HT is empty, make sure we still leave an
object in the FE_RESET result, so our type inference results
stay correct.

Merge branch 'PHP-7.4' into PHP-8.0

* PHP-7.4:
Fixed bug #80186

Fixed bug #80186

Early exit in FE_RESET if get_properties() returns empty array,
as we cannot add HT iterators to zend_empty_array.

Fixed incorrect behavior of observer API.

ZEND_HANDLE_EXCEPTION might call zend_observer_fcall_end() even if exception is cought by function. The fix moved zend_observer_fcall_end() into a r

Fixed incorrect behavior of observer API.

ZEND_HANDLE_EXCEPTION might call zend_observer_fcall_end() even if exception is cought by function. The fix moved zend_observer_fcall_end() into a right place and remove OBSERVER sepecialization for ZEND_HANDLE_EXCEPTION handler.

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Promote count() warning to TypeError

Closes GH-6180

Synchronize GET_CLASS/GET_CALLED_CLASS opcodes with functions

These error conditions throw in the function implementations,
make the opcodes match.

Cleanup observer API and add JIT support

Remove specialization of SPEC(OBSERVER) handlers

Fix OSS Fuzz issue: yielding from an aborted generator

Fix undef var exception handling in JMP_NULL

We need to initialize the result variable in the exceptional
case as well.

Fixes oss-fuzz #25526.

Improve error messages mentioning parameters instead of arguments

Closes GH-5999

micro-optimization

Merge branch 'PHP-7.4'

* PHP-7.4:
Fixed bug #80049

Merge branch 'PHP-7.3' into PHP-7.4

* PHP-7.3:
Fixed bug #80049