What is a convenient library/wrapper for working with Mongodb?

Question

PHP

The main criterion to consider is the php mongodb driver (new).
There are libraries on php mongo (old driver) but they don't work with the new driver.

Answer 1

The Mongo PHP Adapter is a userland library designed to act as an adapter between applications relying on ext-mongo and the new driver (ext-mongodb).
It provides the API of ext-mongo built on top of mongo-php-library, thus being compatible with PHP 7.

Mongo PHP Adapter
And you can use the libraries that require the old driver