for ($i = 0; $i < $numRecords; $i++){ $className = ""; if (($i % 3) == 0) { $className = "last" } ....}这里的关键部分是
($i % 3) == 0。
编辑： 以下是对您的评论的回应。
$results = mysql_query("SELECt * FROM shoeData");$i = 0;while($row = mysql_fetch_array($results)){$i++;$name = $row['name'];$about = $row['about'];$company = $row['company'];$buy = $row['buy'];$tags = $row['tags'];$id = $row['id'];$image = $row['image']; $additionalClass = ($i % 3) == 0 ? " last" : ""; echo "<div >"; echo "<div id='imageHeight'>"; echo "<img src='thumbs/$image'>"; echo "</div>"; echo "<ul>"; echo "<li>$name</l1>"; echo "<li>$about</l1>"; echo "<li>$company</l1>"; echo "<li><a href='$buy'>BUY</a></l1>"; echo "<li>$tags</l1>"; echo "</ul>"; echo "</div>";}
