Question

<?

$sql = dbquery("SELECT `id`, `title`, `description` FROM `content` LIMIT 0,12 ");
while ($row = mysql_fetch_array($sql)) {
    $id          = $row["id"];
    $title       = $row["title"];
    $description = $row["description"];
    $content     = '
    <div class="description-box">
    <p>page id: ' . $id . '</p>
    <p>' . $title . '</p>
    <p>' . $description . '</p>
    </div>';
}

echo $content;
?>

// notice: div class=”description-box”

// How can i replace that with: div class=”description-box nopadding” after every 3 output divs ?

Example of html generated code:

<div class="description-box nopadding">
// content
</div>
<div class="description-box">
// content
</div>
<div class="description-box">
// content
</div>
<div class="description-box">
// content
</div>

// then again the div with nopadding

Answer 1

<div class="description-box'.(($c++%3==0)?' nopadding':'').'">

remember to init $c

It’s very simple:

if remainder of division $c by 3 is equal 0 add ' nopadding' string, otherwise add '' stirng

0 % 3 == 0 // add
1 % 3 == 1
2 % 3 == 2
3 % 3 == 0 // add
4 % 3 == 1
...

Syntax:

echo true ? "it's true" : "it's false"; // it's true
echo (5 % 3); // 2, remainder of 5/3 division
$c = 0;
echo $c++; // 0
echo $c;   // 1