Question

I wonder how to add id attribute to links generated by previous_posts_link() and next_posts_link()
functions. I found that I can add class with this code:

add_filter('next_posts_link_attributes', 'posts_link_attributes');
add_filter('previous_posts_link_attributes', 'posts_link_attributes');

function posts_link_attributes() {
    return 'class="styled-button"';
}

But how to to do with id attribute ?

Answer 1

I believe you could simply use multiple filters to handle this:

add_filter('next_posts_link_attributes', 'set_next_id');
add_filter('previous_posts_link_attributes', 'set_previous_id');

function set_next_id() {
    return 'id="next"';
}

function set_previous_id() {
    return 'id="previous"';
}