SV: Variable name for constants?

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> > I dont think you can do that with a constant, but you can do this a
> > normal variable:
> >
> 
> I stand under correction form my previous email, it can be done:
> 
> define('TEST', 'the value of constant TEST');
> 
> $var= 'TEST';
> 
> echo constant($var);


This may be too early in the morning for me, but I don't get it.. ;-)

Say I have these definitions;
define("IMG_HOME", "pic1.png");
define("IMG_AWAY", "pic2.png");
define("IMG_ELSE", "pic3.png");

Then a function should present the right image based on a variable
(pseudocode):

function show($name) {
   present_img( IMG_$name );
}

If I understand right (probably not...), then I could concat and do like
this?

present_img( constant("IMG_" . $name) );





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