RE: Can someone explain this code snippet please?

["Peter Lovatt" <pjln1@sunmaia.net>]

Hey all, would someone be able to explain the following code to me?  I've
never used a foreach loop and I've never seen the "$$" before a variable.

foreach loops through all members of an array

$$var is a variable who's name is a variable 

eg 

$abc='xyz'
$xzy = 'var1'

$$abc = $xyz = 'var1'

HTH

Peter






foreach ($cart as $isbn => $qty)
{
    if($$isbn=="0")
      unset($cart[$isbn]);
   else
    $cart[$isbn] = $$isbn;
}



Cheers,

Graeme :)


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