在macOS High Sierra上从默认的PHP 7.1降级到PHP 7

Question

I have a fresh installation of macOS High Sierra which comes with PHP 7.1.16 (Build date: Mar 31 2018 02:53:20) installed. I would like to downgrade this to PHP 7.0.27.

PHP 7.1.16 wasn't installed with homebrew, so I assume it's not as easy as removing it and installing PHP 7 with brew.

What is the best and safest way to do this?

There's many resources to upgrade from PHP 7 -> 7.1 or 7 -> 7.2, but nothing to go the other way on macOS.

PHP 7.1.16 (cli) (built: Mar 31 2018 02:59:59) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.1.0, Copyright (c) 1998-2018 Zend Technologies

Answer 1

The best solution as far for my purposes was the shell tool "update-alternatives".

With that you should be able to switch between diffrent php versions dependently on your project.

So for example to switch to anohher php version set:

update-alternatives --set php=path to your php