In this guide you’ll learn how to display Adsense on just your first post within the Loop. Sure, there may be plugins that will do this for you. This guide, however, will use code examples to accomplish the same thing by editing your WordPress theme.
The first step is to open up your index.php file in your theme editor. Find the following line:
<?php if(have_posts()) : ?>
Just above that, insert the following like this:
<?php $i = 1; ?>
<?php if(have_posts()) : ?>
Now, scroll down a bit until you find this line:
<?php endwhile; ?>
Insert the following above it, like so:
<?php $i++; ?>
<?php endwhile; ?>
The final step is to insert your Adsense code. Locate where exactly you’d like it within the Loop, and place it between a conditional tag like this:
<?php if ($i == 1) { ?> [YOUR ADSENSE CODE HERE] <?php } ?>
And that’s all you have to do. You can be creative with this code as well. You could add a certain css style class to the top post in your Loop. It doesn’t even have to be the first either, as you can just change the number in $i == 1 to whatever you want. This same method can be used in other archive templates such as archive.php.