What are the programs for distance learning?

Question

PHP

Hi all!
Does anyone have a large list of distance learning programs? Like: Moodle.
We need programs both foreign (without the support of Russian), and domestic (if any). I'm interested in this as a programmer. How everything works, etc.
PHP projects preferred (optional)

Answer 1

Here is a list of LMS systems, but not complete. In particular, there is no eFront (I myself use this LMS)