1. This looks at isset and unset relating to arrays.

2. in PHP.

3. Shows use of asort and sort.

5. Use of unset.

6. or names that I develop to stand for key and value.

7. Looking at reset and a while loop.

9. Another example is using the list function with the while.

14. binary and hexadecimal.

16. and binary0.PNG.

17. with binary to get binary0.PNG or binary1.PNG.
This generates a random number of 2, 3 or 4.

18. Depending on $cards I go to one of three different functions.

19. global variables are available throughout.

27. Submit will sent myAns and realAns
Submit will sent myAns and realAns. SInce realAns is hidden it is not seen by the user.

28. Receive myAns and realAns.