Using Switch statement to determine the action.

This is an extension of IF STATEMENT I just learned.

I don;'t really understand how thesis working ... But I want to save it for the future.

"If" statement is something you use a lot writing any program.

As you know I have started teaching myself PHP programming. I hove programmed before in different language. I hope I am not just too old to learn. You cannot teach an old dog new tricks.

This is use to add 1 or delete 1 from the valuable when the line is processed. This is what we use to set the number of loops.

To understand bit operations, I need to understand binary. In this example 7 in binary is 00000111, 8 is 00001000. Do I ever used those bit operations? I don't know. But I know PHP can handle bit operations. It is good to know.

Some of the operations are easier to understood when you write them and execute them. The logical Operations are just that. Logical Operations are "AND" "OR" "XOR" and "NOT"

PHP uses ( condition )? true : fault; as a grammar for simple condition testing. It is same as If condition then true else fault in BASIC.

This is how you compare two values. Again type is the main reason I cannot get result.