creating table with different row colors

23style

i am generating table rows dynamically with php and i want to change the bg color so every second row is blue bg.

ive never been able to come up with a solution for this.

the generation is based on a for loop so i thought if i could say...if the number is even bgcolor=blue else bgcolor=red or whatever.

but how do i determine whether the number is odd or even?

thanks for any help on this.. i really appreciate it 😃

mahers


$count = 0;

while(..) {
$bgcolor = ($count++ % 2) ? "#FFFFFF" : "#F1F1F1";

echo '<td bgcolor="'.$bgcolor.'">..</td>';
}

23style

wicked, thanks mate!

% modulo..i forgot about that dealy 😉

itworks

your script was supposed to deliver white and grey, right?

i can't get the colors right, i get green and blue.

why?

stolzyboy

are you color blind, lol, j/k, i have heard of that before, not sure where it was, but it seems to me it was a browser issue, what browser are you using

itworks

internet explorer 6

stolzyboy

hmmm....well that blows my whole theory on the browser thing, i'm not sure then, did you use the code exactly cuz i just tried it and it worked fine for me

itworks

exactly like it was posted, it only works for some colors like #000000 #003366, if i have a letter instead of a number it blows up the whole thing, is this normal? 'cause all the other colors in the script work fine.

stolzyboy

try it like this, it is just written a little different, and how i tend to write stuff anyway

<?
$count = 0;

while(..) {
$bgcolor = ($count++ % 2) ? "#FFFFFF" : "#F1F1F1";
?>
<td bgcolor="<? echo $bgcolor; ?>">..</td>
<?
}

stolzyboy

or you could do it this way, it is a little longer, but achieves the same effect and is a little easier to make sense of

<?
$i = 0;
while (....)
{
if ($i % 2)
{
$i++;
?>
<tr>
<td bgcolor="#f1f1f1">...</td>
</tr>
<?
}
else
{
$i++;
?>
<tr>
<td bgcolor="#ffffff">...</td>
</tr>
<?
}
?>

keith73

mahers solution was a good one.

I'd like to offer an alternative solution that I've used that works well.

$data = array('ABCD','efgh','IJKL','mnop','QRSTu','VwxYZ','1234','56','78','9');
$bgcolors = array("#F0F0F0","#FFFFFF");
$colors = count($bgcolors);
$counter = 1;
print "<table border=1>\n";
foreach($data as $item){	
	print "<tr bgcolor=\"" . $bgcolors[$counter%$colors] . "\"><td>" . $item . "</td></tr>\n";
	$counter++;
}//end foreach
print "</table>\n";

I like doing it this way because I can add any # of colors to the bgcolors array and not have to modify anything else. So if I want alternating colored rows of red,white,blue, I can easily make that change.

One other use I've found is styles. Instead of just specifying a background color, I can set the class of each row to a predefined style name. the array bgcolors would then be $styles = array('style1','style2');

and the table row would have class= instead of bgcolor=

just a thought. I have them once in a while.

keith

itworks

ok it works now, i had to change this:

echo '<td bgcolor="'.$bgcolor.'">..</td>';

to this:

echo '<td bgcolor=\"$bgcolor\">..</td>';

the slash i had already change but the problem was in the point, thanks a lot to you all! 😉