A while ago I needed to add some ads on a website after a set number of paragraphs. The theme used then had no means of adding ads, but even if it had, setting a position for each ad was nothing I’ve seen in any theme I’ve used before. Looking for a solution for this problem, I’ve ended up with this function, which worked just fine for the last 5+ years (to date) and I’m very confident it will work for many years to come. Feel free to remove the comments in the code, they’re added just for guidance.
//Insert ads after paragraph of page content
function prefix_insert_post_ads( $content ) {
$ad_code1 = ' [insert ad code 1 here] ';
$ad_code2 = ' [insert ad code 2 here] ';
$ad_code3 = ' [insert ad code 3 here] ';
// add more increments if you need
// see post types at the bottom and replace if needed
if ( is_single() && !is_admin() ) {
// insert ad after 3rd, 6th, 9th paragraph
// if more are added above, they need to be added here too
$content = prefix_insert_after_paragraph( $ad_code1, 3, $content );
$content = prefix_insert_after_paragraph( $ad_code2, 6, $content );
$content = prefix_insert_after_paragraph( $ad_code3, 9, $content );
return $content;
}
return $content;
}
add_filter( 'the_content', 'prefix_insert_post_ads' );
function prefix_insert_after_paragraph( $insertion, $paragraph_id, $content ) {
$closing_p = '';
$paragraphs = explode( $closing_p, $content );
foreach ($paragraphs as $index => $paragraph) {
if ( trim( $paragraph ) ) {
$paragraphs[$index] .= $closing_p;
}
if ( $paragraph_id == $index + 1 ) {
$paragraphs[$index] .= $insertion;
}
}
return implode( '', $paragraphs );
}
The function have to be added in child theme’s functions.php file, because if it will be added in main theme’s files, it will get overwritten at next update. Also, I had to put the ad code in a
to be able to style it and fine tune it’s size and position, so I ended up with something like this for the ads:
$ad_code1 = '[insert ad code 1 here]';
That’s about it. Play around with it and put it to good use, and maybe let me know how it works for you in the comment below.
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