Test Your Knowledge: Questions
- Question 5-1
What is the main benefit of using a function?
- Question 5-2
How many values can a function return?
- Question 5-3
What is the difference between accessing a variable by name and by reference?
- Question 5-4
What is the meaning of “scope” in PHP?
- Question 5-5
How can you incorporate one PHP file within another?
- Question 5-6
How is an object different from a function?
- Question 5-7
How do you create a new object in PHP?
- Question 5-8
What syntax would you use to create a subclass from an existing one?
- Question 5-9
How can you call an initializing piece of code when an object is created?
- Question 5-10
Why is it a good idea to explicitly declare properties within a class?
See the section Chapter 5 Answers in Appendix A for the answers to these questions.
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