It makes a variable with a name equal to the value of the original variable. If that makes any sense... works like this: $var = "keith"; $$var = "palmer"; print ($keith); // The output is: palmer So in this case, we made a new variable, and the new variables name was the value of $var. We assigned "palmer" to the variable by the name of $var's value. http://www.phpbuilder.com/board/showthread.php?t=10251598