On Fri, 2007-10-05 at 14:00 -0500, Jeff Cohan wrote:
> Daevid Vincent wrote:
> > <TR class=<?php echo ($r = !$r) ? "dataRow1" : "dataRow2"; ?> >
> 
> I love the simplicity, and very cool. 
> 
> But why does the ($r=!$r) ternary condition work?. (I understand
> that it DOES but not WHY.)

Because he's rotating between boolean values.

    $r = true;
    $r = !$r;    // Now $r is false; 
    $r = !$r;    // Now $r is true;
    $r = !$r;    // Now $r is false; 
    $r = !$r;    // Now $r is true;
    $r = !$r;    // Now $r is false; 
    $r = !$r;    // Now $r is true;
    $r = !$r;    // Now $r is false; 
    $r = !$r;    // Now $r is true;
    ...

Cheers,
Rob.
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