Mac OS Mojave downgrade PHP 7.3 to 7.2.14
you need to run
brew link php@7.2
To force the link and overwrite all conflicting files:
brew link --overwrite php@7.2
To list all files that would be deleted:
brew link --overwrite --dry-run php@7.2
The PHP version in your CLI has nothing to do with the version you have on your Apache module.
You need to disable/enable the right modules in apache in order for the right php version to take affect.
For enabling/disabling a mod, you have this nice helper commands:
a2enmod <MOD_NAME> // Enable a moda2dismod <MOD_NAME> // Disable a mod
This one is not tested, but you should be able to do:
a2dismod php7.3a2enmod php7.2
P.S
Not sure the apache helper commands are available in mac so you can do it directly through the httpd.conf
file.
checkout /etc/apache2/httpd.conf
and make sure the right modules are loaded.
Hope it helps.Good luck :)