Get rid of ZEND_ACC_CTOR, ZEND_ACC_DTOR and ZEND_ACC_IMPLEMENTED_ABSTRACT

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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Use zval_ptr_dtor() instead of zval_dtor() in internal functions that destroy new created object (This is safer and produces less code)

Export standard object handlers, to avoid indirect access

Use zend_string_release_ex() instread of zend_string_release() in places, where we sure about string persistence.

Remove unused argument

Remove return types from some magic method in protos

__construct, __destruct, __wakeup does not have return types defined.

Improve loop vectorization

Improve loop vectorization

Use int instead of integer in proto

year++

year++

year++

Move constants into read-only data segment

Add zend_object_alloc() API

Using ecalloc() to create objects is expensive, because the
dynamic-size memset() is unreasonably slow. Make sure we only
zero the main object structure w

Add zend_object_alloc() API

Using ecalloc() to create objects is expensive, because the
dynamic-size memset() is unreasonably slow. Make sure we only
zero the main object structure with known size, as the properties
are intialized separately anyway.

Technically we do not need to zero the embedded zend_object
structure either, but as long as the memset argument is constant,
a couple more bytes don't really matter.

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Fix unsigned comparisons and remove dead code

Fix unsigned comparison

Cleanup never executed block

Fix unsigned comparison

Fix unsigned comparison, diff can't be <

Fix unsigned comparisons and remove dead code

Fix unsigned comparison

Cleanup never executed block

Fix unsigned comparison

Fix unsigned comparison, diff can't be < 0

Fix unsigned comparison

Fix unsigned comparison

Remove dead code

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Use interned strings for hash algorithm names (not copyied into SHM)

Add hash_hmac_algos() for filtered is_crypto methods

Refactor HashContext into an object.

This allows better type hinting as well as potentially adding
methods in a followup diff.

Original patch by Rouven Weßling (github.com/reali

Refactor HashContext into an object.

This allows better type hinting as well as potentially adding
methods in a followup diff.

Original patch by Rouven Weßling (github.com/realityking)
Heavily modified by Sara Golemon (github.com/sgolemon)

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Merge branch 'PHP-7.1'

* PHP-7.1:
Securely zero the hash context key

Merge branch 'PHP-7.0' into PHP-7.1

* PHP-7.0:
Securely zero the hash context key

Securely zero the hash context key

Use hash_ops->is_crypto in hash_init()

Disallow non-crypto hashes in HMAC and PBKDF2

For this purpose add is_crypto flag to php_hash_ops.

Add hash_hkdf()