Re: Alternate Colors in Rows ($r=!$r)
| From: | Robert Cummings | Date: | Fri, 05 Oct 2007 18:20:24 +0000 |
| Subject: | Re: Alternate Colors in Rows ($r=!$r) | ||
| References: | 1 2 3 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-262832@lists.php.net to get a copy of this message | ||
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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