The best way to install MongoDB on yum-enabled Linux distributions (CentOS or Fedora) is through yum package manager. provides repositories (depending on your OS and CPU architecture) that you should add to your list of yum repos:

Once you have the repository properly installed under /etc/yum.repos.d you can install the latest stable mongoDB release with:\

sudo yum install mongo-stable-server

which will actually install both the server and the client (since client is set as a dependency).

Once installed MongoDB can be started with:\

sudo /etc/init.d/mongod start

Further, if you need to Mongo-enable your PHP just run:\

sudo pecl install mongo

and follow instructions.