In case you wanna make slack apps in php.
https://github.com/HelgeSverre/slack-bolt-php
GitHubGitHub - HelgeSverre/slack-bolt-php: A modern PHP Slack application framework with typed handlers, Block Kit builders, OAuth, and a package-owned Slack client.A modern PHP Slack application framework with typed handlers, Block Kit builders, OAuth, and a package-owned Slack client. - HelgeSverre/slack-bolt-php
commit f73c303
In case you want to use Slack as a cache for your Slack app: https://github.com/that-guy-wade/slackcache
GitHubGitHub - that-guy-wade/slackcache: A Redis-compatible cache stored in a free Slack workspace. Eviction policy: the free plan.A Redis-compatible cache stored in a free Slack workspace. Eviction policy: the free plan. - that-guy-wade/slackcache