Define config var PHP_JSON

Otherwise, `ADD_EXTENSION_DEP('foo', 'json')` fails, even though the
JSON extension is available.

Don't generate JSON scanner and parser during configure

[RFC] Always enable JSON support in php 8.0

Currently, it's possible to disable the json extension with
`./configure --disable-json` (for historical reasons that no longer apply).
Ho

[RFC] Always enable JSON support in php 8.0

Currently, it's possible to disable the json extension with
`./configure --disable-json` (for historical reasons that no longer apply).
However, JSON is widely used in many use cases - web sites, logging output,
and as a data format that can be used to share data with many applications
and programming languages,
so I'd personally find it useful if it was always enabled.

Examples of where this would be useful:

- For internal classes to be able to implement `JsonSerializable`
which currently requires a hard dependency on the JSON extension.
- For PHP users to publish single-file scripts that use json_encode and
json_decode and don't require polyfills or less readable var_export output.
(polyfills are less efficient and may have issues with recursive data
structures)
- So that php-src's own modules, tools and test cases can start using JSON
if it's a good choice for encoding a value. (same for PECLs)

https://wiki.php.net/rfc/jsond mentions that in PHP 5,

> The current Json Parser in the json extension does not have a free license
> which is a problem for many Linux distros.
> This has been referenced at Bug #63520.
> That results in not packaging json extension in the many Linux distributions.

Starting in php 7.0 with the switch to jsond,
It looks like licensing is no longer an issue.

Changes:

- Remove all flags related to JSON such as `configure --disable-json`
- Require that JSON be compiled statically instead of as a shared library

Examples of uses of JSON in various distros
(backwards incompatible changes such as changing packaging are typically
reserved for major versions, and 8.0 is a major version)

- JSON is required by `php-cli` or `php` in ubuntu:
https://packages.ubuntu.com/focal/php/
- The php-json package has to be installed separately
from the PHP binary in Fedora repos.

Closes GH-5495

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Sync leading and final newlines in source code files

This patch adds missing newlines, trims multiple redundant final
newlines into a single one, and trims redundant leading newlines.

Sync leading and final newlines in source code files

This patch adds missing newlines, trims multiple redundant final
newlines into a single one, and trims redundant leading newlines.

According to POSIX, a line is a sequence of zero or more non-' <newline>'
characters plus a terminating '<newline>' character. [1] Files should
normally have at least one final newline character.

C89 [2] and later standards [3] mention a final newline:
"A source file that is not empty shall end in a new-line character,
which shall not be immediately preceded by a backslash character."

Although it is not mandatory for all files to have a final newline
fixed, a more consistent and homogeneous approach brings less of commit
differences issues and a better development experience in certain text
editors and IDEs.

[1] http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_206
[2] https://port70.net/~nsz/c/c89/c89-draft.html#2.1.1.2
[3] https://port70.net/~nsz/c/c99/n1256.html#5.1.1.2

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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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Merge branch 'PHP-7.1' into PHP-7.2

# Conflicts:
# ext/json/config.w32

JSON: fix config.w32 / Install headers on windows

add nmakefile fragment for json

generate missing json files from config.w32

Merge branch 'master' into jsond

Conflicts:
ext/json/JSON_parser.c
ext/json/JSON_parser.h
ext/json/config.m4
ext/json/config.w32
e

Merge branch 'master' into jsond

Conflicts:
ext/json/JSON_parser.c
ext/json/JSON_parser.h
ext/json/config.m4
ext/json/config.w32
ext/json/json.c
ext/json/php_json.h

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Move json encoding stuff

Initial import of jsond

ext/iconv, ext/json and ext/session use static tsrmls pointer

Fixed bug #63588 Duplicate implementation of php_next_utf8_char

Json use an utf8 parser from a third party library, switch to
our implementation of php_next_utf8_char.
This also help

Fixed bug #63588 Duplicate implementation of php_next_utf8_char

Json use an utf8 parser from a third party library, switch to
our implementation of php_next_utf8_char.
This also helps on solving #63520. All the unit tests succeed.
Our implementation also seems a little faster.

json.dsp need to be regenerated.

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- add PHP_INSTALL_HEADERS to all parts (core&exts) exposing headers, generate the install-headers cmd

enable by default

- Rewritten for better performance. 3-8x faster encodes, 2-4x faster decodes.
- No longer uses json-c, implements it's own JSON parser and encoder.
- JSON parser based on Douglas Crockford's

- Rewritten for better performance. 3-8x faster encodes, 2-4x faster decodes.
- No longer uses json-c, implements it's own JSON parser and encoder.
- JSON parser based on Douglas Crockford's JSON_checker.

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Add json extension to PECL.