奇怪甚至在PHP / MySQL中

Question

I want to ask how to set odd or event in mysql->php output. I can do this with that code:

if($i%2 == 0)
{
    $class = 'content';
}
else
{
    $class = 'contents';
}


echo "<tr class='$class'>...

...but if i remove manual a row in the mysql things at output get messed. I'm thinking some way with foreach...or something like that. Any help will be superb.

Answer 1

This will work:

$i = 0;
while ($row = $result->fetch_assoc()) {
    $class = ($i++ % 2) ? 'contents' : 'content';
...
}