This thread is for discussions of An Introduction to PHP.

You can also do string concatenation like
Code:

$h = "Hello";
$w = "World";

$message = "$h $w";

hello

I have in php a header which brings a save as box , but when file is down loaded it contains the 6 blank spaces at the start of of document .
I have to avoid storing these blank spaces.Please help me to solve this problem.

In the PHP file should it be "$_POST["num"]" ?

instead of just $num?

Yes, I think you're correct, although you could easily have a line like this:

$num = $_POST['num'];

to get around that problem. Which I think is what's missing from this tutorial

Here they show how to send valued in one file to another(both are in same folder)
but i need to send values in one folder to another