Change representation of zend_type from type code to MAY_BE_* mask

This switches zend_type from storing a single IS_* type code to
storing a MAY_BE_* type mask. Right now most code still

Change representation of zend_type from type code to MAY_BE_* mask

This switches zend_type from storing a single IS_* type code to
storing a MAY_BE_* type mask. Right now most code still assumes
that there is only a single type in the mask (or two together
with MAY_BE_NULL). But this will make it a lot simpler to introduce
union types.

An additional advantage (and why I'm doing this separately), is
that a number of special cases no longer need to be handled
separately: We can do a single mask & (1 << type) check to handle
all simple types, booleans (true|false) and null.

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Merge branch 'PHP-7.4'

Allow exceptions in __toString()

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

And convert some object to string conversion related recoverable
fatal errors into Error excep

Allow exceptions in __toString()

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

And convert some object to string conversion related recoverable
fatal errors into Error exceptions.

Improve exception safety of internal code performing string
conversions.

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Merge branch 'PHP-7.4'

* PHP-7.4:
ARM64 may be big endian

ARM64 may be big endian

Merge branch 'PHP-7.4'

* PHP-7.4:
Load 8 bytes at a time in hash_func. (Sebastian Pop)

Load 8 bytes at a time in hash_func. (Sebastian Pop)

Merge branch 'PHP-7.4'

* PHP-7.4:
Improve PHP hash function. See Daniel Lemire's blog post https://lemire.me/blog/2016/07/21/accelerating-php-hashing-by-unoptimizing-it/

Improve PHP hash function.
See Daniel Lemire's blog post https://lemire.me/blog/2016/07/21/accelerating-php-hashing-by-unoptimizing-it/

Merge branch 'PHP-7.4'

Fixed bug #72685

We currently have a large performance problem when implementing lexers
working on UTF-8 strings in PHP. This kind of code tends to perform a
large number of matches

Fixed bug #72685

We currently have a large performance problem when implementing lexers
working on UTF-8 strings in PHP. This kind of code tends to perform a
large number of matches at different offsets on a single string. This
is generally fast. However, if /u mode is used, the full string will
be UTF-8 validated on each match. This results in quadratic runtime.

This patch fixes the issue by adding a IS_STR_VALID_UTF8 flag, which
is set when we have determined that the string is valid UTF8 and
further validation is skipped.

A limitation of this approach is that we can't set the flag for interned
strings. I think this is not a problem for this use-case which will
generally work on dynamic data. If we want to use this flag for other
purposes as well (mbstring?) then it might be worthwhile to UTF-8 validate
strings during interning. But right now this doesn't seem useful.

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Merge branch 'PHP-7.4'

* PHP-7.4:
Fix typos in code comments in Zend/ [skip ci]

Fix typos in code comments in Zend/ [skip ci]

Merge branch 'PHP-7.4'

* PHP-7.4:
Remove local variables

Remove local variables

This patch removes the so called local variables defined per
file basis for certain editors to properly show tab width, and
similar settings. These are mainly

Remove local variables

This patch removes the so called local variables defined per
file basis for certain editors to properly show tab width, and
similar settings. These are mainly used by Vim and Emacs editors
yet with recent changes the once working definitions don't work
anymore in Vim without custom plugins or additional configuration.
Neither are these settings synced across the PHP code base.

A simpler and better approach is EditorConfig and fixing code
using some code style fixing tools in the future instead.

This patch also removes the so called modelines for Vim. Modelines
allow Vim editor specifically to set some editor configuration such as
syntax highlighting, indentation style and tab width to be set in the
first line or the last 5 lines per file basis. Since the php test
files have syntax highlighting already set in most editors properly and
EditorConfig takes care of the indentation settings, this patch removes
these as well for the Vim 6.0 and newer versions.

With the removal of local variables for certain editors such as
Emacs and Vim, the footer is also probably not needed anymore when
creating extensions using ext_skel.php script.

Additionally, Vim modelines for setting php syntax and some editor
settings has been removed from some *.phpt files. All these are
mostly not relevant for phpt files neither work properly in the
middle of the file.

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Remove support for __autoload()

There are probably some improvements we can do to the SPL
implementation now that __autoload() is gone. In particular having
EG(autoload_func) as a pr

Remove support for __autoload()

There are probably some improvements we can do to the SPL
implementation now that __autoload() is gone. In particular having
EG(autoload_func) as a property zend function, rather than a simple
callback probably doesn't make sense.

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Adios, yearly copyright ranges

Adios, yearly copyright ranges

Merge branch 'PHP-7.3'

Fix compilation on x32

Signed-off-by: Elan Ruusamäe <glen@pld-linux.org>

Merge branch 'PHP-7.3'

* PHP-7.3:
NEWS
Fix: #77110 undefined symbol zend_string_equal_val in C++ build

Fix: #77110 undefined symbol zend_string_equal_val in C++ build

Future-proof email addresses

Update email addresses. We're still @Zend, but future proofing it...

Improved shared interned strings handling. The previous implementation worked incorrectly in ZTS build. It changed strings only in function/class tables of one thread. Now all threads gets the same s

Improved shared interned strings handling. The previous implementation worked incorrectly in ZTS build. It changed strings only in function/class tables of one thread. Now all threads gets the same shared interned strings. Also, on shutdown, we don't try to replace SHM interned strings back to process strings, but delay dettachment of SHM instead.

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