Install intl PHP extension OSX High Sierra

Question

How can I install intl PHP extension in PHP 7.1.7, which is delivered with osx high sierra?

Answer 1

After the integration from brew/php to brew/core, the intl extension is included by the default installation. I also had the same problem the intl extension wasn't working. The problem I had was the command-line environment was not using the installed version of PHP but the default version from macOS system.

To enable the installed version, you need to do this:

After brew install php@7.1

You need to link the installed PHP version by brew link php@7.1

Then you need to OPEN A NEW TERMINAL to make it effective.
Then double check the PHP binary path, which php

make sure it's /usr/local/bin/php instead of /usr/bin/php

Then check if the intl extension is enabled, php -m | grep intl

It works for me.