How to add nofollow attribute to links

Hi,
thanks i am glad you are liking the WPAdverts so far :).

Regarding your question, you can add the code below in your theme functions.php file (or even better create a new WP plugin and add it there) it will add nofollow attribute to all links in the description.

function my_nofollow($content) {
    return preg_replace_callback('/<a[^>]+/', 'my_nofollow_callback', $content);
}
function my_nofollow_callback($matches) {
    $link = $matches[0];
    $site_link = get_bloginfo('url');

    if (strpos($link, 'rel') === false) {
        $link = preg_replace("%(href=\S(?!$site_link))%i", 'rel="nofollow" $1', $link);
    } elseif (preg_match("%href=\S(?!$site_link)%i", $link)) {
        $link = preg_replace('/rel=\S(?!nofollow)\S*/i', 'rel="nofollow"', $link);
    }
    return $link;
}
add_filter('adverts_the_content', 'my_nofollow');

Hello,

I am just curious what is the benefit of making the links a nofollow

Will this plugin work for this request https://www.ads-software.com/plugins/wp-external-links/

Can you also add rel=sponsored and rel=ugc to your code above

Hi,
1. what each “rel” attribute does you can read here https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/rel

2. to have “rel” set to “nofollow”, “sponsored” and “ugc” in the code above you would need to replace

rel="nofollow"

with

rel="nofollow sponsored ugc"

note there are two occurrences on lines 9 and 11.

3. i am not sure if https://www.ads-software.com/plugins/wp-external-links/ will work with Advert description but my guess is it will not as the description of the advert is generated last once all filters already run.