How to transfer a project using Yii2 as an example?

Question

Yii

Developed a project using Yii2 basic and composer on a local server. Now I want to transfer it to a simple hosting.
Tell me, please, how to do it correctly, the question is especially interesting:
1. Do I need to transfer only yii2 files or composer too?
2. If you need to transfer and then install composer on the hosting, is it done via ssh?
3. The hosting only supports composer installation via VPS, can I transfer and run the composer transfer meringue project?

Answer 1

1. Enough files
2. see paragraph 1
3. see paragraph 1
of the PS. It is desirable to make the correct structure when transferring. Put the contents of the web in a public folder, and the rest at least one level higher