Are you beginner ? Try this... It may help you..

Question

https://www.w3resource.com/javascript-exercises

Answer 1

Ohh.. Thank you Learning, this is very educational to javascript beginner. I am very appreciate that... ^_^b

Answer 2

It means you will have to write php code within
<?php

?>

Answer 3

yes

Answer 4

<?php
echo "Hello World!";
?> please <?PHP ? mean