Don't disable object slot reuse while running shutdown functions

We only need to do this once we're running destructors. The current
approach interferes with some event loop code that ru

Don't disable object slot reuse while running shutdown functions

We only need to do this once we're running destructors. The current
approach interferes with some event loop code that runs everything
inside a shutdown function.

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Future-proof email addresses

Remove unused Git attributes ident

The $Id$ keywords were used in Subversion where they can be substituted
with filename, last revision number change, last changed date, and last
use

Remove unused Git attributes ident

The $Id$ keywords were used in Subversion where they can be substituted
with filename, last revision number change, last changed date, and last
user who changed it.

In Git this functionality is different and can be done with Git attribute
ident. These need to be defined manually for each file in the
.gitattributes file and are afterwards replaced with 40-character
hexadecimal blob object name which is based only on the particular file
contents.

This patch simplifies handling of $Id$ keywords by removing them since
they are not used anymore.

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Fixed typo

Improved "Fast Shutdown".

Implement flexible heredoc/nowdoc syntax

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

* The ending label no longer has to be followed by a semicolon or
newli

Implement flexible heredoc/nowdoc syntax

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

* The ending label no longer has to be followed by a semicolon or
newline. Any non-label character is fine.
* The ending label may be indented. The indentation will be stripped
from all lines in the heredoc/nowdoc string.

Lexing of heredoc strings performs a scan-ahead to determine the
indentation of the ending label, so that the correct amount of
indentation can be removed when calculting the semantic values for
use by the parser. This makes the implementation quite a bit more
complicated than we would like :/

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year++

year++

year++

Allowed modification of VM stack page size. Exported few functions. Green light for Fibers/Coroutines.

further sync for vim mode lines

Removed EG(valid_symbol_table). Used EG(active) instead.

Interned strings unification for TS/NTS

Hereby, interned strings are supported in thread safe PHP. The patch
implements two types of interned strings

- interning per process, st

Interned strings unification for TS/NTS

Hereby, interned strings are supported in thread safe PHP. The patch
implements two types of interned strings

- interning per process, strings are not freed till process end
- interning per request, strings are freed at request end

There is no runtime interning.

With Opcache, all the permanent iterned strings are copied into SHM on
startup, additional copying into SHM might happen on demand.

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Added EG(flags) - executor global flags
EG_FLAGS_IN_SHUTDOWN - is set when PHP is in shutdown state

Deprecate each()

Update copyright headers to 2017

Update copyright headers to 2017

Update copyright headers to 2017

Revert "Introduced zend.enable_dtrace INI directive to enable/disable PHP call tracing"

This reverts commit 01239b0effbc1839aca6d03cdd4c3a0c1a509798.

Introduced zend.enable_dtrace INI directive to enable/disable PHP call tracing

Fix "already in use" check inconsistencies/bugs

This fixes the following issues:
* "use function" and "use const" inside namespaced code were checking
for conflicts against class

Fix "already in use" check inconsistencies/bugs

This fixes the following issues:
* "use function" and "use const" inside namespaced code were checking
for conflicts against class imports. Now they always check against
the correct symbol type.
* Symbol conflicts are now always checked within a single file only.
Previously class uses inside namespaced code were checked globally.
This behavior is illegal because symbols from other files are not
visible if opcache is used, resulting in behavioral discrepancies.
Additionally this made the presence/absence of symbol errors dependent
on autoloading order, which is volatile.
* The "single file" restriction is now enforced by collecting defined
symbols inside a separate hash table. Previously it was enforced
(for the non-namespaced case) by comparing the filename of the
symbol declaration. However this is inaccurate if the same filename
is used multiple times, such as may happen if eval() is used.
* Additionally the previous approach relies on symbols being registered
at compile-time, which is not the case for late-bound classes, which
makes the behavior dependent on class declaration order, as well as
opcache (which may cause delayed early-binding).
* Lastly, conflicts are now consistently checked for conditionally
defined symbols. Previously only declaration-after-use conflicts were
checked in this case. Now use-after-declaration conflicts are
detected as well.

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Make sure TOKEN_PARSE mode is thread safe

Introduce an on_event_context passed to the on_event hook. Use this
context to pass along the token array. Previously this was stored
in a n

Make sure TOKEN_PARSE mode is thread safe

Introduce an on_event_context passed to the on_event hook. Use this
context to pass along the token array. Previously this was stored
in a non-tls global :/

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Turn safe timeout handling into general interrupt handling ability.

Eliminated checks for (func->op_array.fn_flags & ZEND_ACC_GENERATOR) in fast path of DO_FCALL* handlers.
This slightly improves calls to regular function and method calls in cost of a bit slower

Eliminated checks for (func->op_array.fn_flags & ZEND_ACC_GENERATOR) in fast path of DO_FCALL* handlers.
This slightly improves calls to regular function and method calls in cost of a bit slower generator initialization.
Separate call frame for generators, allocated on heap, now created by ZEND_GENERATOR_CREATE instruction.

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Intern some known (and offten used) strings.