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General Discussion

Joseph McClellan
Joseph McClellan
4,045 Points

PHP loop question

I'm outputting some photos with a php loop and I'd like to assign a css class to every 8th image that is output. I'm not 100% certain how to go about doing this. Any ideas?

I already have a loop implemented to do something with the 32nd image outputted at which point the loop cuts out... here's my code thus far.. oh this is using wordpress as the CMS.

$speakers_image_loop = new WP_Query( $args ); $count = 0; while ( $speakers_image_loop->have_posts() ) : $speakers_image_loop->the_post(); ?>

<?php $count++; ?> <!-- increment the count variable -->

<?php the_post_thumbnail();?>

<?php if ($count == 32) : ?> <!-- output goes here --> <?php else : ?><?php endif; ?> <!-- that's the end of the loop interrupt -->

<?php // Loop ends endwhile; // Reset the query wp_reset_postdata();

So I figure I can just use the count variable and call it on the 8th, 16th and 24th image to be output. It's probably an easy solution, but it's evading me.

3 Answers

A couple of options for you:

Using Only CSS If you are looking to add a class for styling, use CSS (following example does not work non-modern browsers)

div img:nth-child(8n) {
    /* CSS class you wish to add*/


Using PHP If you are looking to add the class for reasons other than styling (or for styling in older browsers) the following may help (it uses the modulus operator):

// the following goes inside your loop

// increment your counter

// used a "switch" statement in case you need to add more items, you could also use an "if" statement
switch (true) {

    // this first, as switch() only executes one item per run
    case (32 === $count):
        // code here for your last item

    // every 8th item
    case (0 === ($count % 8)):
        echo '<img src="/img/whatever.jpg" alt="alt content" class="eighthItem">

PHP Math page

Joseph McClellan
Joseph McClellan
4,045 Points

I had it working for a while with CSS, then it broke. I figured out what went wrong -- added an 'a' tag before the image. Just had to update the css to be

div a:nth-child(8) img {
    /* css class *
Joseph McClellan
Joseph McClellan
4,045 Points

I still need to use the loop for something else, but at least this little problem is fixed. Thanks!