Description:
------------
I think it'd be VERY useful to be able to declare/state variables based on the value of another variable. I've run into situations where it would save me a bit of time if this were possible.

In "Reproduce Code", I'll show you a piece that would be useful for an encryption function that I wrote.

Reproduce code:
---------------
/*
    Giving Letters Numerical Values
*/

$alphabet = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$length = strlen($alphabet);

for ($cur=0;$cur<$length;$cur++){
    $letter = substr($alphabet, $current, $current+1);
    $numberVal = $current+1;
    /*
        This is where my idea comes in to play.
        To be able to name the variable "a",
        referred to as $a (and b,c,d so on...).
        I've used the syntax ^$var to define the naming
        of the variable dependant on the value of
        $var (another variable)...
    */
    ^$letter = $numberVal;
}

echo $a.'-'.$b.'-'.$c.'-'.$A.'-'.$B.'-'.$C;

Expected result:
----------------
1-2-3-26-27-28

Actual result:
--------------
Probably an "unexpexted '^'" parse error.