Fix leak on "Cannot assign by reference to overloaded object" error

Handle "non well formed" exception during ZPP

Previously if the "non well formed" notice was converted into an
exception we'd still end up executing the function.

Also drop the

Handle "non well formed" exception during ZPP

Previously if the "non well formed" notice was converted into an
exception we'd still end up executing the function.

Also drop the now unnecessary EG(exception) checks in the engine.

Additionally remote a bogus exception in zend_is_callable: It
should only be writing to error, but not directly throwing.

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Fixed bug #78644

Make sure the initialize the result of FETCH_OBJ_UNSET operations.
I'm using a NULL value rather than ERROR here, because the latter
no longer exists in master.

Fixed bug #78531 (Crash when using undefined variable as object

Eliminate checks using ZEND_CONST_COND() macro

Improve exception handling for abstract/deprecated calls

Reuse existing arg freeing loop instead of duplicating it.

Additionally also handle deprecated in DO_FCALL_BY_NAME.

Fix handling of abstract/deprecated exception

The exception mechanism assumes that exceptions from DO_FCALL are
already happening after the function call. This means that we are
curr

Fix handling of abstract/deprecated exception

The exception mechanism assumes that exceptions from DO_FCALL are
already happening after the function call. This means that we are
currently leaking the passed arguments, and I think we can also
corrupt the VM stack due to incorrect frame linking in some cases
(there are assertion failures if the VM stack page size is reduced).

Instead handle the stack frame freeing manually for this special
case.

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Inline zend_zval_ptr() in executor explicitely (only on hot paths)

Mark _get_zval_ptr_deref as unused

Try to fix macos build

By avoiding unused variable opline warnings. Also clean up the
replacement of ZEND_VM_SPEC -- we were sometimes treating it as
an always-defined constant with

Try to fix macos build

By avoiding unused variable opline warnings. Also clean up the
replacement of ZEND_VM_SPEC -- we were sometimes treating it as
an always-defined constant with a value (what it actually is) and
sometimes as a conditionally defined constant (which it isn't, but
which still worked thanks to the specializer). Switch to only
treating it as a constant with a value.

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Deprecate array_key_exists() on objects

Separate "cold" and common unspecialized code

Remove unused _get_zval_ptr_cv_BP_VAR_UNSET function

To fix the macos -Werror build.

Delay IS_UNDEF checks

Separate "cold" parts of comparison instructions

Throw notice on array access on illegal type

No notice is thrown for list() accesses, because we did not come
to an agreement regarding patterns like

while ([$key, $value] =

Throw notice on array access on illegal type

No notice is thrown for list() accesses, because we did not come
to an agreement regarding patterns like

while ([$key, $value] = yield $it->next()) { ... }

where silent null access may be desirable.

No effort is made to suppress multiple notices in access chains
likes $x[0][0][0], because the technical complexity this causes
does not seem worthwhile.

RFC: https://wiki.php.net/rfc/notice-for-non-valid-array-container

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Rename support_strings to !is_list

In preparation for more behavior that depends on whether it it is
a list() access. Using support_strings for that would be
confusing.

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

Improve zend_binary_assign_op helpers.
Reorder opcode numbers to make ADD-POW and ASSIGN_ADD-ASSIGN_POW opcodes sequencional.

Better optimization in RELEASE build. ZEND_ASSERT(s) prevented optimization

Optimization of INC/DEC helpers

Fixed build without global register variables

Separate slow code

Micro-optimization

Cleanup