
The first step in this process is to update all the latest packages then upgrade them. The cleanest way to migrate from the old brew formulae to the new pecl package approach is to remove everything PHP-related and reinstall with the new instructions. Connect the bootable flash drive containing the macOS Sierra installer to.
#Clean out homebrew install mac sierra how to
Follow the instructions for how to create a bootable macOS Sierra installer on a USB flash drive. In the Recovery app window, select Reinstall for your macOS release, click Continue, then follow the onscreen instructions. You must be signed in as an administrator on the Mac or provide an administrator name and password to complete these steps. To perform a clean install on the startup drive, first create a bootable copy of the installer, boot from it, and erase the startup drive before installing macOS Sierra. With the deprecation of Homebrew/php tap, many of the prior formulaes we used in this guide are no longer available. Choose Apple menu > Shut Down, press and hold the power button until Loading startup options appears, select Options, click Continue, then follow the onscreen instructions.

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This is a guide to help those with prior Homebrew mutliple PHP-based installations that are looking to upgrade to the new Hombrew/core PHP setup from the prior Homebrew/php keg which is now deprecated.
