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Date: Fri, 18 Nov 2005 16:00:27 -0500
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Subject: Re: PHP Macros
From: gamblergluck@yahoo.com (Roman Ivanov)

Jason Garber wrote:
> Hello Internals,
> 
>   Remember the ifsetor() discussion?  There were many, many people for
>   it, and many people that did not see the point.  To this day, it's
>   not been allowed into the source tree, and I don't see any way to
>   change that.  So...
> 
>   Please consider (some form of) this if it's possible:
> 
> 
>   define_macro square(x)
>   {
>      ((x) * (x))
>   }
> 
>   define_macro ifsetor(x, y)
>   {
>      (isset(x) ? x : y)
>   }
> 
>   $n = square($n);
>   
> 
>   If the parser/compiler sees one of these, then it will add it to
>   it's list of "macros", and when it runs into the usage of one, it
>   will do a little token-replacing before compiling it...
>   
>   Is it technically doable?

I dare to suggest PHP replacement:

define('SQUARE_X', 'return $x * $x;');
$x = 10;
echo eval(SQUARE_X);