How to install mongodb php extension in Mamp Pro MacOS

install-mongodb-mamp

brew install autoconf
php -m
php -v
which php
pecl install mongodb
Check Folder
/Applications/MAMP/bin/php/php7.0.15/lib/php/extension/no-debug-non-zts
update template php.ini to add ext

extension=mongodb.so


A mongodb.so extension should now be in your /Applications/MAMP/bin/php/php7.0.15/lib/php/extension/no-debug-non-zts folder.

Build process completed successfully
Installing '/Applications/MAMP/bin/php/php7.2.20/lib/php/extensions/no-debug-non-zts-20170718/mongodb.so'
install ok: channel://pecl.php.net/mongodb-1.5.5
configuration option "php_ini" is not set to php.ini location
You should add "extension=mongodb.so" to php.ini

Now, We just need to swap this over to the PHP that is installed with MAMP, which is located at /Applications/MAMP/bin/php/php5.4.10/bin (MAMP 2.1.3)
To do this, We need to edit the .bash_profile and add the MAMP version of PHP to the PATH variable.

Within the Terminal, run vim ~/.bash_profile
Type i and then paste the following at the top of the file: export PATH=/Applications/MAMP/bin/php/php7.1.22/bin:$PATH Hit ESC, Type :wq, and hit Enter
In Terminal, run source ~/.bash_profile
In Terminal, type in which php again and look for the updated string. If everything was successful, It should output the new path to MAMP PHP install.
In case it doesn't output the correct path, try closing the terminal window (exit fully) and open again, it should apply the changes (Restart in short).