Difference between homebrew-core/php and shivammathur/homebrew-php

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Homebrew has in-house PHP formulae for all PHP versions.

brew install php
brew install php@8.0
...

But there's also a tap (shivammathur/homebrew-php) available to install PHP versions.

brew tap shivammathur/php
brew install shivammathur/php/php
brew install shivammathur/php/php@8.0
...

I've encountered a blog stating the following:

You can either use the built-in php recipe, but I recommend to use the shivammathur/homebrew-php tap.

This makes me wonder what the reasoning is behind the existence of shivammathur/homebrew-php and moreover why it's supposedly recommended over the in-house formulae?

homebrew php
1 Answers

PHP versions provided by shivammathur/homebrew-php: 5.6, 7.0, 7.1, 7.2, 7.3, 7.4, 8.0, 8.1, 8.2

PHP versions provided by homebrew/homebrew-core: 7.2, 7.3, 7.4, 8.0, 8.1

Note that the official homebrew/homebrew-core tap does not have the pre-release 8.2 version and the older 5.6, 7.0, and 7.1 versions. Therefore, it's not recommended to depend on homebrew/homebrew-core for specific PHP versions because they might be unavailable at the moment or deleted in the future. For such cases, a third-party tap such as shivammathur/homebrew-php should be used instead. (Ideally, developers should update their applications to be compatible with the latest stable PHP version, but sometimes that takes too long or is maybe even impossible.)

From Why is it so hard to install old versions of homebrew-core packages?

The philosophy of Homebrew is that we do not care that much about old versions of software. This is how Homebrew was designed, and how it has worked for the last 10 years.

Some people confuse Homebrew with virtualenvs / conda / nix, which surely provide a better support for older versions and different build environments. We are not doing this and do not plan to do this in a foreseable future. Our audience is also not the same.

But support for old versions is not totally zero in Homebrew: you can host an old formula in a tap if you want to maintain it, or we have some versioned formuale (example python@3.8 and python@3.7), because we thought these were really important and deserved to be maintained by us. But we try to avoid too many of these and there are strict rules around versioned formulae.

So it is totally doable to build your own collection of homebrew formulae for your company. We even introduced the possibility to build bottles and host them yourself (for free) a few days/weeks ago: https://brew.sh/2020/11/18/homebrew-tap-with-bottles-uploaded-to-github-releases/.

From Acceptable Formulae ¶ Niche (or self-submitted) stuff:

The software in question must:

  • be maintained (i.e. the last release wasn’t ages ago, it works without patching on all Homebrew-supported OS versions and has no outstanding, unpatched security vulnerabilities)
  • be known
  • be stable (e.g. not declared “unstable” or “beta” by upstream)
  • be used
  • have a homepage

We will reject formulae that seem too obscure, partly because they won’t get maintained and partly because we have to draw the line somewhere.

user_152500120
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