Link “Show contact information” to author page

Hi, you can do this by adding the code below in your theme functions.php file

add_action( "init", "custom_button_init" );
function custom_button_init() {
    remove_action('adverts_tpl_single_bottom', 'adverts_single_contact_information');
    add_action('adverts_tpl_single_bottom', 'custom_button_html');
}
function custom_button_html( $post_id ) {
    ?>
    <div class="adverts-single-actions">
        <a href="#your-link-here" class="adverts-button" data-id="<?php echo $post_id ?>">
            <?php esc_html_e("Contact Author", "adverts") ?>
        </a>
    </div>
    <?php
}

Thank you @gwin
But how do I make it link to the author profile? If the user post an add I would like it to link to that user.
Is it possible?

If you want to display a link to page with author posts you need to replace #your-link-here with get_author_post_url() function see https://codex.www.ads-software.com/Function_Reference/get_author_posts_url

@gwin thank you for your support. However I would like the button to link to the “user profile” who made the add. I am not good with PHP. I was able to make a link to the user profile but the button disappeared so I made something wrong.
I am almost there!

Can you paste the code you already have?

@gwin

add_action( "init", "custom_button_init" );
function custom_button_init() {
    remove_action('adverts_tpl_single_bottom', 'adverts_single_contact_information');
    add_action('adverts_tpl_single_bottom', 'custom_button_html');
}
function custom_button_html( $post_id ) {
    ?>
    <div class="adverts-single-actions">
        <a href="<?php echo get_author_posts_url( get_the_author_meta( 'ID' ), get_the_author_meta( 'user_nicename' ) ); ?>"><?php the_author(); ?>" class="adverts-button" data-id="<?php echo $post_id ?>">
            <?php esc_html_e("Contact Author", "adverts") ?>
        </a>
    </div>
    <?php
}

Most likely the HTML in custom_button_html should be

    <div class="adverts-single-actions">
        <a href="<?php echo get_author_posts_url( get_post( $post_id )->post_author ); ?>" class="adverts-button">
            <?php esc_html_e("Contact Author", "adverts") ?>
        </a>
    </div>

@gwin it works! Thanks a lot! Great ??