MongoDB extension support

[ShockedPlot7560]

This binary contains direct support for mysql and sqlite however as soon as we want to use another database such as mongo, it is mandatory to create our own fork and to modify it ourselves.

Seeing the increasing demand for this extension, I think it would be a good idea to add it. In any case, it is always possible to disable it in the php.ini

[AkmalFairuz]

I don't recommend to use MongoDB in PM server.

The extension was designed for web application, the MongoDB connection will close after the script end. There is no way to close the Mongo connection like mysqli_close($conn) (this will cause memory leak) unless you're using the old Mongo extension.

mongodb/mongo-php-library#600

[SOF3]

would it be better to access mongodb with a userspace library instead?

[dktapps]

I don't recommend to use MongoDB in PM server.

The extension was designed for web application, the MongoDB connection will close after the script end. There is no way to close the Mongo connection like mysqli_close($conn) (this will cause memory leak) unless you're using the old Mongo extension.

mongodb/mongo-php-library#600

I don't think this is a concern. The reason they implemented it like this is so that different PHP web requests can reuse the same client without having to reestablish connections. In the PM context, every thread is a request.

Unless you have a habit of establishing large numbers of MongoDB connections to many different databases, I don't really think this is a problem.

[SOF3]

so is the mongodb instance freed when a thread exits? if that is the case, it sounds reasonable.

[dktapps]

So far as I understand, no. But in any case, I don't think it matters.

[SOF3]

For example, in terms of network errors, would it still leak a resource even though connection breaks?

[ShockedPlot7560]

In any case, it is up to the developer in this case to pay attention to all the tools he uses and to get informed about them.
Simply, at the moment, the only way to use a db mongo is either to find a wobbly fork with the extension, or to change DB.

[SOF3]

Note that the use of mongodb itself is highly controversial due to its lack of consistency in its opinionated preference over simplicity.