Function (&$n)

http://www.php.net/manual/en/functions.arguments.php

Making arguments be passed by reference

By default, function arguments are passed by value (so that if the value of the argument within the function is changed, it does not get changed outside of the function). To allow a function to modify its arguments, they must be passed by reference.

To have an argument to a function always passed by reference, prepend an ampersand (&) to the argument name in the function definition:

Det er en reference der bliver brugt til pegere (pointer).

Thank...

Ja.. Fandt ud af..

Ohh Nice.. Elsker når jeg finder ud af ting..