Adding widget option in functions.php

I’m trying to develop a widget for the popular posts tutorial here http://bavotasan.com/tutorials/how-to-list-your-most-popular-posts-in-wordpress/

I’m not sure how to replace the $num variable in functions.php with

Can someone please help?

The first block of code goes into your functions.php file and the second one goes in a text widget. This is how you set the number of posts to show where “10” is the number.

<?php echo popularPosts(10); ?>

Thanks Vagrant I know that part but how to I set the number of posts via a widget option? $options['number'];?>

Thanks Vagrant I know that part but how to I set the number of posts via a widget option? $options['number'];?>

Where are you getting this options number code from?

You just put the above php code in the widget and “(10)” is how you set the number of posts.

in your functions file:

function popularPosts($num) {
    global $wpdb;

    $posts = $wpdb->get_results("SELECT comment_count, ID, post_title FROM $wpdb->posts ORDER BY comment_count DESC LIMIT 0 , $num");

    foreach ($posts as $post) {
        setup_postdata($post);
        $id = $post->ID;
        $title = $post->post_title;
        $count = $post->comment_count;

        if ($count != 0) {
            $popular .= '<li>';
            $popular .= '<a href="' . get_permalink($id) . '" title="' . $title . '">' . $title . '</a> ';
            $popular .= '</li>';
        }
    }
    return $popular;
}

in your text widget:

<?php echo popularPosts(10); ?>  

popularPosts(10) is your number of posts.

Here’s the widget I created. http://pastie.org/939361. Have you read this? http://justintadlock.com/archives/2009/05/26/the-complete-guide-to-creating-widgets-in-wordpress-28. Hope this helps!