Prevent Apache from autostarting at boot
https://stackoverflow.com/questions/8065288/how-to-remove-autostart-of-apache-on-macosx
https://lukearmstrong.github.io/2016/12/setup-apache-mysql-php-homebrew-macos-sierra/
1) Enter this command to stop Apache if it is running, the second line below (not prefixed with $) is the error I received from the command, this is to be expected as it shouldn’t be running.
$ sudo apachectl stop
/System/Library/LaunchDaemons/org.apache.httpd.plist: Could not find specified service
2) This command will stop Apache from starting on boot.
sudo launchctl unload -w /System/Library/LaunchDaemons/org.apache.httpd.plist 2>/dev/null