Why to learn SQL, if PHP gives you control over databases?

Question

So, I started to learn PHP and came to know that it can do these things
Collecting form data
- Adding, deleting, and modifying information stored in your database
- controlling user-access
- encrypting data
then What is the need of SQL?

Answer 1

Without SQL knowledge you will not be able to do any Select/Create/Update/Delete operation.
PHP is Server Side language help you to do ur stuff(business logic) in server and SQL holds your Data.

Answer 2

Thanks Eranga