How to install php_gmp in MacOS catalina, Xampp VM and php7.3

Question

I am using Web Push library to send push notification but getting error -

Warning: [WebPush] gmp extension is not loaded but is required for sending push notifications with payload or for VAPID authentication

i have enabled extension:php_gmp in php.ini but still same issue is there. i am new to MacOS environment and so have no clue,

Answer 1

I had the same problem. The issue was with modifying the wrong file in my case.

List of files with .ini extension in D:\xampp\php

In the attached image above, the files in the red rectangle is what I was initially changing but the one that should be modified is the file in the green rectangle. After uncommenting the gmp extension I no longer got the error.

Location of the specific .ini file to modify

You can find the specific php.ini file in the second image directly above.