fix signed/unsigned mismatch

fix initializer struct

Reintroduce fix from pull #770 in a PHP 7 way

Revert "Merge branch 'PHP-5.6'"

This reverts commit aaf5689f4d6e523fd78e0291dbbcd78f3ea988dc, reversing
changes made to 481bf25b6ad70fcdc9c10f02b49c86a0bd4a3d0d.

Combine foreach copy / switch cond stacks

Now one common stack to handle both, which stores znodes instead of
full oplines (foreach copy stack) or switch entries (switch cond
stack).

Combine foreach copy / switch cond stacks

Now one common stack to handle both, which stores znodes instead of
full oplines (foreach copy stack) or switch entries (switch cond
stack).

Also removed EG(start_op) while at it.

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Use efree_size() instead of efree() where posible

Remove ZEND_ACC_INTERACTIVE and CG(interactive)

As far as I can discern these are leftovers of the interactive
shell implementation that was used before PHP 5.4. Now the readline
ext

Remove ZEND_ACC_INTERACTIVE and CG(interactive)

As far as I can discern these are leftovers of the interactive
shell implementation that was used before PHP 5.4. Now the readline
ext makes use of normal eval calls for this.

So, dropping these until there is evidence to the contrary, as they
currently wouldn't work anyway.

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Fix compiler warnings

master renames phase 2

master renames phase 1

Fix bug #67858: Leak when $php_errormsg already set

further fixes on core

first shot on merging the core fro the int64 branch

Fixed initializing

Fix typo from commit 32314f6b6

Fix destruction order in zend_shutdown (bug #65463, #66036)

If Apache or a similar SAPI receives a signal during PHP processing
it calls zend_shutdown() without calling shutdown_executor

Fix destruction order in zend_shutdown (bug #65463, #66036)

If Apache or a similar SAPI receives a signal during PHP processing
it calls zend_shutdown() without calling shutdown_executor().
#65463: If a module like Gearman or Memcached is loaded,
in the unfixed version it is unloaded by zend_destroy_modules() before the
CG(CLASS_TABLE) is destructed. When CG(CLASS_TABLE) is destructed,
any pointers to methods (specifically around destruction) in the unloaded
module's .so are now dangling and the process segfaults.
#66036: Any subclasses of an internal class like ArrayObject need
to be destructed in order: subclass first and then the internal class. In the
unfixed version zend_shutdown() clears the CG(CLASS_TABLE) from the head
of the list onwards, so internal classes are destructed first and user-defined
classes last. Internal classes are alloc/deallocated with malloc/free while
user-defined classes with emalloc/efree. If there's shared data between them
then efree() could be called instead of free() leading to a seg-fault.

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execute_data->return_value should be initialized when call internal constructors

Implemented Closure::apply

zend_get_class_fetch_type works on zend_string

Fix leaks

Must find a good way to handle constant expressions...

Implement call_user_func() and call_user_func_array() using special opcodes.
In some rare cases it leads to insignificant changes in error messages.

Avoid useless check

Simplify call-frame handling

Removed EG(active_symbol_table) and use corresponding value from EG(current_execute_data)

Removed EG(called_scope) and use corresponding value from EG(current_execute_data)