1.How is PHP integrated into an HTML document?

2.When is PHP interpreted by the server?

3.How are PHP statements terminated?

4.What is the purpose of the settype and gettype functions?

5.List an example of settype causing data loss in a variable.

6.What is the difference between settype and casting?

7.What is the PHP string concatenation operator?

8.What does an uninitialized PHP number evaluate to? What does an uninitialized string evaluate to?

9.What is an array with non-integer indices called?

10.What is a regular expression? What is a character class?