PHP7 is gaining a lot of attention lately, promising great performance and a more mature language. Version 7.0.0-alpha is out. We are just starting to rework our core application, which uses MongoDB as data source.
I am wondering if there is any development underway for a PHP7 compatible MongoDB extension? How far is it? Is there any alternative?
The old Mongo extension for PHP is not going to be supported in PHP7. Instead, there is a new MongoDB extension which is using libmongo under the hood and is a more "bare bones" approach that has the goal of being easy to maintain and easy to port to other environments such as HHVM. It also aims to work with any version down to PHP 5.4.
To make the new extension easier to work with, there is an official php library available on Packagist. This library does not aim to be a drop-in replacement for the old Mongo extension. It should be noted that at the time of writing, the library doesn't implement all the features available in the old Mongo extension, such as GridFS. Hopefully we'll see a non-beta release of the extension and library soon with all the available features.