do two arrarys automatically merge? when you use the same variables? eg,
$var = array();
// do array stuff here
// build...
$who[] = $var1;
$var = array();
// do array stuff here
//build...
$who[] = $var1;
now will $who automatically have both, or to i need to add+ them? or do i have to use different variables for each then add? or is it fine the way it is?