How to organize the work of a team without full access to all project codes in PHP?

Question

git

Tell me how you can organize development in PHP in a team of programmers only so that none of them would see the entire project as a whole, but would have access only to their written codes. It is also desirable that when developing in PhpStorm there were hints when entering the names of class methods.
Git is not suitable because there the project is completely copied to the local computer

Answer 1

Storm needs all the code, otherwise the hints won't work. You have a bad idea. On kraynyak - use microservices.

Answer 2

Tell me how you can organize development in PHP in a team of programmers only so that none of them would see the entire project as a whole, but would have access only to their written codes.

Make a bunch of separate libraries / services, then let the person who has the right to know everything put it all together. But it will not be easy to design it correctly.
So you should think carefully about whether you really need it. The cost and chance to sit in a puddle increases significantly.

Answer 3

Sign an NDA and don't reinvent your wheel.

Answer 4

The idea is game and tin. But if you want, this is implemented in SVN right out of the box.
Of course, there will be no highlighting in phpstorm.