I stop here for today before I really confuse myself.

The sample codes listed is very confusing. I am modifying them to make sure it works. I still don't have a good handle / understanding of class. What can't we just use function()???

I think one of the features of PHP is to make it class/object oriented. To do so, you need to understand Class and Object and how they are used. I will spent more time with this to make sure I understand what I am doing. This is a sample ... I created a class called Dog and calling it from outside.

Of cause when you go to Japan, you want to eat Japanese food. They are so good and much cheaper in Japan (usually). But if you really need to eat wester food, they are there as well.

Do you think it is a good name???

You cannot find huge meals like in the USA in Japan. That might be one of the reasons people in Japan in general are smaller than the people in the US. In addition, people rely on the public transportation and do o drive as much in the cities in Japan. That contribute to more expertise.

Encoding it make it safer.

This is another high level function of PHP. I am starting to feel like PHP is a 4th generation language ... if you know what I mean.

Another string functions provided PHP that I used to have to write it myself.

This is another function that I used to write as a subroutine in BASIC. I don't know if I call PHP a programming langue. I nishi day 14 with this function.