What in layman's terms is a Recursive Function using PHP

Question

Can anyone please explain a recursive function to me in PHP (without using Fibonacci) in layman language and using examples? i was looking at an example but the Fibonacci to

Answer 1

Basically this. It keeps calling itself until its done

void print_folder(string root)
{
    Console.WriteLine(root);
    foreach(var folder in Directory.GetDirectories(root))
    {
        print_folder(folder);
    }
}

Also works with loops!

void pretend_loop(int c)
{
    if(c==0) return;
    print "hi";
    pretend_loop(c-);
}

You can also trying googling it. Note the "Did you mean" (click on it...). http://www.google.com/search?q=recursion&spell=1