PHP extension for interfacing with Redis

This extension provides an API for communicating with Redis servers.

phpredis 5.3.0RC1

This release adds the first round of support for Redis 6 functionality including,
most importantly ACLs. Other Redis 6 functionality is included as well such as
KEEPTTL and XINFO FULL command support.

Aside from the Redis 6 functionality this releasae contains many bugfixes and
improvements.

* Sponsors
~ Audiomack.com - https://audiomack.com
~ BlueHost.com - https://bluehost.com
~ Redis Cache Pro for WordPress - https://wprediscache.com/
~ Avtandil Kikabidze - https://github.com/akalongman

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* Support for Redis 6 ACLs [a311cc4e] (Michael Grunder)
* LZ4 Compression [04def9fb] (Ilia Alshanetsky)
* Support for new Redis 6 arguments (XINFO FULL, SET KEEPTTL) [a0c53e0b,
f9c7bb57] (Michael Grunder, Victor Kislov)
* Support for TLS connections [890ee0e6, b0671296] (Pavlo Yatsukhnenko)
* New option Redis::SCAN_PREFIX, Redis::SCAN_NOPREFIX [e80600e2] (Pavlo
Yatsukhnenko)
* Configurable unit test authentication arguments [e37f38a3, 201a9759]
(Pavlo Yatsukhnenko, Michael Grunder)
* Improved cluster slot caching mechanism to fix a couple of bugs and make
it more efficient. [5ca4141c] (Michael Grunder)
* Stop calling Redis constructor when creating a RedisArray [e41e19a8]
(Pavlo Yatsukhnenko)
* Use ZEND_LONG_FMT instead of system `long` [5bf88124] (Michael Grunder)
* Use long for SCAN iteration to fix potential overflow [f13f9b7c]
(Victor Kislov)
* Fix config.m4 to test for the variable $PHP_REDIS_JSON and not the
literal PHP_REDIS_JSON [20a3dc72] (Mizuki Nakano)
* Fix compiler warnings [b9b383f4, 215828e] (Remi Collet),
Pavlo Yatsukhnenko)
* Avoid use-after-free of RediSock [8c45816d] (Pavlo Yatsukhnenko)
* Fixed ZADD arginfo [a8e2b021] (Pavlo Yatsukhnenko)
* Store AUTH information in flags RedisSock rather than duplicating
information. [58dab564] (Pavlo Yatsukhnenko)
* Refactor redis_sock_get_connection_pool logic. [73212e1]
(Pavlo Yatsukhnenko)
* Updated documentation to show LPUSH and RPUSH are variadic and fixed DEL
documentation. [92f8dde1] (Michael Grunder)
* Authenticate in redis_server_sock_open [4ef465b5] (Pavlo Yatsukhnenko)
* Dynamically include json.so in unit tests based on configuration
[0ce7ca2f] (Michael Grunder)
* Update save_path logic in Redis Cluster session unit tests [dd66fce]
(Pavlo Yatsukhnenko)
* Refactoring various bits of logic [bbcf32a3, a42cf189, 460c8f29,
b7f9df75] (Pavlo Yatsukhnenko)
* Use the portable `ZEND_LONG_FORMAT` family instead of C format specifiers
[b9b383f4](Remi Collet)
* PHP 8 compatibility [9ee94ca4, 7e4c7b3e] (Pavlo Yatsukhnenko)
* Refactor PHPREDIS_GET_OBJECT macro [d5dadaf6, 190c0d34]
(Pavlo Yatsukhnenko)
* Fix documentation showing lPush and rPush are variadic [6808cd6a]
(Michael Grunder)