Homebrew-core: Install additional PHP-extensions

[FaimMedia]

I cannot find any information about how to install additional PHP extensions, such as Phalcon or Imagick.

Since 1.5 this doesn't work anymore:

brew install php72-phalcon

Error: No available formula with the name "php72-phalcon" 
==> Searching for a previously deleted formula (in the last month)...
Warning: homebrew/core is shallow clone. To get complete history run:
  git -C "$(brew --repo homebrew/core)" fetch --unshallow

Error: No previously deleted formula found.
==> Searching for similarly named formulae...
==> Searching local taps...
Error: No similarly named formulae found.
==> Searching taps...
==> Searching taps on GitHub...
Error: No formulae found in taps.

brew install php72-imagick

Error: No available formula with the name "php72-imagick" 
==> Searching for a previously deleted formula (in the last month)...
Warning: homebrew/core is shallow clone. To get complete history run:
  git -C "$(brew --repo homebrew/core)" fetch --unshallow

Error: No previously deleted formula found.
==> Searching for similarly named formulae...
==> Searching local taps...
Error: No similarly named formulae found.
==> Searching taps...
==> Searching taps on GitHub...
Error: No formulae found in taps.

Websites report:
http://formulae.brew.sh/formula/php72-phalcon: _Formula was removed_
http://formulae.brew.sh/formula/php72-imagick: _Formula was removed_

What? Why?
How can I install extensions with homebrew?

[j03k64]

It's expected that going forward you'll have to use pecl to install those. The maintainers decided to move hombrew-php to homebrew-core and with that move, dropped the extension packages. It is either installed with the core package php or handled by pecl.

[asentner]

Has the apache DSO support been dropped? No longer generating a library.

[FaimMedia]

@jpirkey So I have to compile them from source on every update?
Seems like to much work for me, I will be switching back to VirtualBox with a Linux OS then.

[MikeMcQuaid]

Seems like to much work for me, I will be switching back to VirtualBox with a Linux OS then.

@FaimMedia Feel free, what tools you use are no real concern of ours.