This article shows you how to read such a parameter in two lines of code, the first telling Perl that XML: : Simple is being used and the second setting a variable to a value in the file.

For example, you can add two values together, or you can assign a value to a variable.

If we are assigning one value variable to the other variable, it creates two distinct copies of the same data on the stack. So now in the stack there are two Spaces allocated.