Accept zend_string instead of zval in compile_filename

Fast Class Cache

This is generalization of idea, that was previously usesd for caching
resolution of class_entries in zend_type. Now very similar mechanizm is
used for general zend_s

Fast Class Cache

This is generalization of idea, that was previously usesd for caching
resolution of class_entries in zend_type. Now very similar mechanizm is
used for general zend_string into zend_class_entry resolution.

Interned zend_string with IS_STR_CLASS_NAME_MAP_PTR GC_FLAG uses its
refcount to adress corresponding zend_class_entry cache slot.
The refcount keeps an offset to this slot from CG(map_ptr_base).
Flag may be checked by ZSTR_HAS_CE_CACHE(str), cache slot may be read by
ZSTR_GET_CE_CACHE(str) and set by ZSTR_SET_CE_CACHE(str, ce).

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Introduce pseudo-keyword ZEND_FALLTHROUGH

And use it instead of comments

Set expectations

Merge branch 'PHP-8.0'

* PHP-8.0:
Changed PowerPC CPU registers used by Zend VM to work around GCC bug.

Merge branch 'PHP-7.4' into PHP-8.0

* PHP-7.4:
Changed PowerPC CPU registers used by Zend VM to work around GCC bug.

Changed PowerPC CPU registers used by Zend VM to work around GCC bug.

Old registers (r28/r29) might be clobbered by _restgpr routine used for return from C function compiled with -Os.

Drop unneessary if branch and adjust arg_num type

This if branch seems to be a remain of when certain type errors where E_WARNINGs, something which isn't the case since PHP 8.0.

Add zend_hash_lookup() and zend_hash_index_lookup() functions.
Thet search for an element with given key/index and add an empty one (NULL), if no found.

Don't imply SILENT from NO_AUTOLOAD

We have separate flags for non-autoloading class fetches and
silent class fetches. There's no reason why NO_AUTOLOAD should
be special-cased to be

Don't imply SILENT from NO_AUTOLOAD

We have separate flags for non-autoloading class fetches and
silent class fetches. There's no reason why NO_AUTOLOAD should
be special-cased to be implicitly silent.

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Change Zend Stream API to use zend_string* instead of char*.

This allows to eliminate re-calculation of string lenght and hash value.
See the detailed list of changes in UPGRADING.INTERN

Change Zend Stream API to use zend_string* instead of char*.

This allows to eliminate re-calculation of string lenght and hash value.
See the detailed list of changes in UPGRADING.INTERNALS.

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Check for WRONG_PROPERTY_INFO

Add sanity check for type of read_property return value

If an internal class overrides read_property and declared property
types, make sure that the returned value matches the declared

Add sanity check for type of read_property return value

If an internal class overrides read_property and declared property
types, make sure that the returned value matches the declared
type (in debug builds).

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Merge branch 'PHP-8.0'

* PHP-8.0:
Fixed bug #80811

Fixed bug #80811

When filling in defaults for skipped params, make sure that
reference parameters get the expected reference wrapper.

Merge branch 'PHP-8.0'

* PHP-8.0:
Fix trampoline leak on dynamic static call of non-static method

Fix trampoline leak on dynamic static call of non-static method

Fixes oss-fuzz #30317.

Fixed bug #80781

zend_find_array_dim_slow() may throw, make sure to handle this.
This backports the code we already use for this on PHP-8.0,
and also backports an exception check tha

Fixed bug #80781

zend_find_array_dim_slow() may throw, make sure to handle this.
This backports the code we already use for this on PHP-8.0,
and also backports an exception check that makes this easier to
catch.

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Merge branch 'PHP-8.0'

* PHP-8.0:
Fix symtable cache being used while cleaning symtable

Merge branch 'PHP-7.4' into PHP-8.0

* PHP-7.4:
Fix symtable cache being used while cleaning symtable

Fix symtable cache being used while cleaning symtable

We need to first clean the symtable and then check whether a cache
slot is available for it. Otherwise, it may happen that a destruc

Fix symtable cache being used while cleaning symtable

We need to first clean the symtable and then check whether a cache
slot is available for it. Otherwise, it may happen that a destructor
runs while cleaning the table and uses up all the remaining slots
in the cache.

This is particularly insidious because once we overflow the cache,
the first pointer we modify is symtable_cache_ptr, making it hard
to understand what happened after the fact.

Fixes oss-fuzz #30815.

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Deprecate passing null to non-nullable arg of internal function

This deprecates passing null to non-nullable scale arguments of
internal functions, with the eventual goal of making the b

Deprecate passing null to non-nullable arg of internal function

This deprecates passing null to non-nullable scale arguments of
internal functions, with the eventual goal of making the behavior
consistent with userland functions, where null is never accepted
for non-nullable arguments.

This change is expected to cause quite a lot of fallout. In most
cases, calling code should be adjusted to avoid passing null. In
some cases, PHP should be adjusted to make some function arguments
nullable. I have already fixed a number of functions before landing
this, but feel free to file a bug if you encounter a function that
doesn't accept null, but probably should. (The rule of thumb for
this to be applicable is that the function must have special behavior
for 0 or "", which is distinct from the natural behavior of the
parameter.)

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

Closes GH-6475.

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Merge branch 'PHP-8.0'

* PHP-8.0:
Don't throw additional Error in require_once if exception already thrown

Don't throw additional Error in require_once if exception already thrown

As pointed out in comments on bug #66216.

Use zend_type.ce_cache__ptr for caching class resulution during argument/result type checks