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[Caching](/categories/caching) 4. / 5. pressjitsu/pj-object-cache-red ActiveWordpress-plugin[Caching](/categories/caching) pressjitsu/pj-object-cache-red ============================== The fastest known WordPress Redis-based Object Cache. 1.2(5y ago)971.9k17[10 issues](https://github.com/pressjitsu/pj-object-cache-red/issues)[1 PRs](https://github.com/pressjitsu/pj-object-cache-red/pulls)GPL-3.0+PHPPHP >=5.3 Since Feb 21Pushed 4y ago9 watchersCompare [ Source](https://github.com/pressjitsu/pj-object-cache-red)[ Packagist](https://packagist.org/packages/pressjitsu/pj-object-cache-red)[ Docs](https://pressjitsu.com/blog/redis-object-cache-wordpress/)[ RSS](/packages/pressjitsu-pj-object-cache-red/feed)WikiDiscussions master Synced 1mo ago READMEChangelogDependenciesVersions (3)Used By (0) Overview -------- [](#overview) A highly efficient, predictive and unit tested WordPress object cache backend that implements all available methods using the Redis PECL library. Why is this fork better? ======================== [](#why-is-this-fork-better) - Preloads known cache keys via a single `mget()` call with lazy unserialization - Further microoptimized routines makes this the **fastest** Redis object cache implementation out there - Unit-tested with 100% effective target coverage For more information check out Authors ------- [](#authors) - Pressjitsu, Inc. - Gennady Kovshenin - Eric Mann - Erick Hitter Installation ------------ [](#installation) 1. Install and configure Redis. There is a good tutorial [here](https://www.digitalocean.com/community/tutorials/how-to-install-and-secure-redis-on-debian-9). 2. Install the [Redis PECL module](http://pecl.php.net/package/redis) or compile from [source](https://github.com/phpredis/phpredis). 3. Add `object-cache.php` to the wp-content directory. It is a drop-in file, not a plugin, so it belongs in the wp-content directory, not the plugins directory. 4. By default, the script will connect to Redis at 127.0.0.1:6379. See the *Connecting to Redis* section for further options. ### Connecting to Redis [](#connecting-to-redis) By default, the plugin uses `127.0.0.1` and `6379` as the default host and port when creating a new client instance; the default database of `0` is also used. Three constants are provided to override these default values. Specify `WP_REDIS_BACKEND_HOST`, `WP_REDIS_BACKEND_PORT`, and `WP_REDIS_BACKEND_DB` to set the necessary, non-default connection values for your Redis instance. ### Prefixing Cache Keys [](#prefixing-cache-keys) The constant `WP_CACHE_KEY_SALT` is provided to add a prefix to all cache keys used by the plugin. If running two single instances of WordPress from the same Redis instance, this constant could be used to avoid overlap in cache keys. Note that special handling is not needed for WordPress Multisite. Support ------- [](#support) Support for this plugin can be had over at ### Health Score 33 — LowBetter than 74% of packages Maintenance18 Infrequent updates — may be unmaintained Popularity32 Limited adoption so far Community23 Small or concentrated contributor base Maturity52 Maturing project, gaining track record Bus Factor2 2 contributors hold 50%+ of commits How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window. **Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores. **Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement. **Maturity (30%)** — Project age, version count, PHP version support, and release stability. ### Release Activity Cadence Every ~122 days Total 2 Last Release 2146d ago ### Community Maintainers ![](https://www.gravatar.com/avatar/113c5f9278504b2e6d55fce1f8412914ed6328ff34c3b9e099493e36d2f875b7?d=identicon)[soulseekah](/maintainers/soulseekah) --- Top Contributors [![soulseekah](https://avatars.githubusercontent.com/u/685880?v=4)](https://github.com/soulseekah "soulseekah (45 commits)")[![ethitter](https://avatars.githubusercontent.com/u/321503?v=4)](https://github.com/ethitter "ethitter (33 commits)")[![ericmann](https://avatars.githubusercontent.com/u/605474?v=4)](https://github.com/ericmann "ericmann (15 commits)")[![pj-dave](https://avatars.githubusercontent.com/u/16899510?v=4)](https://github.com/pj-dave "pj-dave (14 commits)")[![ocean90](https://avatars.githubusercontent.com/u/617637?v=4)](https://github.com/ocean90 "ocean90 (3 commits)")[![hans2103](https://avatars.githubusercontent.com/u/639822?v=4)](https://github.com/hans2103 "hans2103 (3 commits)")[![tillkruess](https://avatars.githubusercontent.com/u/43051830?v=4)](https://github.com/tillkruess "tillkruess (2 commits)")[![msigley](https://avatars.githubusercontent.com/u/4201801?v=4)](https://github.com/msigley "msigley (1 commits)")[![grappler](https://avatars.githubusercontent.com/u/1785641?v=4)](https://github.com/grappler "grappler (1 commits)")[![wkhayrattee](https://avatars.githubusercontent.com/u/7369626?v=4)](https://github.com/wkhayrattee "wkhayrattee (1 commits)") --- Tags cacherediswordpressperformanceredisobject-cache ### Embed Badge ![Health badge](/badges/pressjitsu-pj-object-cache-red/health.svg) ``` [![Health](https://phpackages.com/badges/pressjitsu-pj-object-cache-red/health.svg)](https://phpackages.com/packages/pressjitsu-pj-object-cache-red) ``` ### Alternatives [predis/predis A flexible and feature-complete Redis/Valkey client for PHP. 7.8k305.7M2.4k](/packages/predis-predis)[snc/redis-bundle A Redis bundle for Symfony 1.0k39.4M67](/packages/snc-redis-bundle)[clue/redis-protocol A streaming Redis protocol (RESP) parser and serializer written in pure PHP. 5311.0M13](/packages/clue-redis-protocol)[anahkiasen/flatten A package for the Illuminate framework that flattens pages to plain HTML 33313.0k](/packages/anahkiasen-flatten)[rtcamp/nginx-helper Cleans nginx's fastcgi/proxy cache or redis-cache whenever a post is edited/published. 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