Shading alternate rows

[gravey]

How do i take data from a database and sent into a table with shading occuring on alternate rows?

thanks

[sarahk]

create a toggle eg $rowToggle = 0; then on each <tr> tag set the class (or background) to one setting using an if. Then $rowToggle = 1- $rowToggle.

$rowToggle = 0;
echo "<table class='mytable' width='100%'>";
while ...
{
  echo "<tr class='" . ($rowToggle = 0 ? "evenrow" : "oddrow") . "'>";
  // now echo all the data
  echo "</tr>";
  $rowToggle = 1 - $rowToggle;
}
echo "</table>";

[meehand]

similarly, you can keep a counter as you loop through your results and then test if your counter is divisible by 2:

if ($i%2 == 0) {
$bgcolor = "#ffffff";
} else {
$bgcolor = "#cccccc";
}

[mikesgt2]

or you can do this, lol:

$boolean = true;
	while(true) {
		$rowclass = $boolean ? 'row0' : 'row1';
		$boolean = !$boolean;
	}

[Sxooter]

In our company phonebook we print out the fields in groups of 1 through 6 in gray bars (i.e. it's variable based on user preference.)

Since I don't know ahead of time how many there will be and didn't want to program up a different function for each, here's the code we use to tell if we should be gray or not:

function is_gray($num,$grayspace){
    $gb=$grayspace*2;
    if ($num%$gb>=0&&$num%$gb<$gb/2) return 1;
}