We need to install MongoDB drivers for PHP/Apache (Ubuntu LTS 12.04). An error message showed up in apache logs when trying to access MongoDB in the Phalcon framework:
PHP Fatal error: Class 'MongoClient' not found in ...
We consider that LAMP and MongoDB is already installed.
We need first to install and compile the MongoDB module:
$ sudo pecl search mongo $ sudo pecl install mongo
If the build process did not set up the php.ini file, do it yourself:
$ sudo cd /etc/php5/apache2/
Finally restart the services:
$ sudo service apache2 restart $ sudo service mongodb restart