Questions on OOP concepts
1. What are the access specifiers available in php ? Explain
2. What is object cloning ?
3. What are the differences between interface and abstract
class ?
4. What is overloading ?
5. What is overriding ?
6. How to prevent function overriding ?
7. What is the use of "final" keyword ?
8. What is static variable ? How will access a static
variable ? What is static class ?