NO! For the love of God and all that is holy, don't do that accumulator /
mod "hack".
That's sooooo 1980's. And why make the CPU do all that math for every row...
Just do this. It's quick and simple:
CSS:
.dataRow1 { background-color: #DFDFDF; }
.dataRow2 { background-color: #FFFFFF; }
foreach ($foo_array as $foo) {
?><tr class="<?= ($dr = !$dr) ? "dataRow1" : "dataRow2" ?>"><td><?= $foo
?></td></tr><?php
}
No need to initialize $dr as by default PHP will make it a boolean "false",
then each itteration, it will toggle true/false and substitute the CSS class
> -----Original Message-----
> From: Jim Lucas [mailto:lists@xxxxxxxxx]
> Sent: Monday, August 10, 2009 4:03 PM
> To: John Butler
> Cc: PHP-General List
> Subject: Re: how to say "inverse your value" (to a boolean)?
>
> John Butler wrote:
> > quick Q:
> > I have this inside a foreach{} that I want to alternate
> between on and
> > off so I can alternate the background-color of my <tr>'s.
> >
> > $tableRowBGcolorBoolCounter != $tableRowBGcolorBoolCounter;
> //-boolean
> > on and off
> >
> > I am looking thru' docs and books, but can't remember (nor
> find now) in
> > PHP how to say "inverse your value" (to a boolean).
> > ?
> >
> > TIA! -G
> >
> >
>
> <?php
>
> $arr = range(1, 10);
>
> $i = 0;
> foreach ( $arr AS $row ) {
>
> $row_color = ( ( $i++ % 2 ) ? 'green' : 'red');
>
> echo $row_color;
>
> }
>
> ?>
>
>
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