1. use index.php file
2. types of web
3. print the php file -- echo "asif", print("asif");
echo can do concatenation by "+" operator but print can't do.
4. always use "$" sign when use variable;

5. use $ when declare arguments in function

6. we must use <br> tag into ''comma. "<br>"

7. forEach()

8. javascript = lenght, php = count

9. we can get array by for loop, but we will get value by forEach()

10. get, post , isset()











