MongoDB PHP extension for MAMP in Mac OS X

The command ‘pecl’ in MAMP dos not work; therefore, it requires to download pre-complied PHP extensions from https://github.com/mongodb/mongo-php-driver/downloads

Open php.ini and add below code
[code]extension=mongo.so[/code]

Reference: http://www.php.net/manual/en/mongo.installation.php#mongo.installation.osx