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I'm new in wordpress. I want to display all author list with its ID. I'm using wp_list_authors function but didn't get any author id from the author list. So, How can I get Author's ID in listing of all author?

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up vote 2 down vote accepted

You can use the following:

// prepare arguments
$args  = array(
// search only for Authors role
'role' => 'Author',
// order results by display_name
'orderby' => 'display_name'
// Create the WP_User_Query object
$wp_user_query = new WP_User_Query($args);
// Get the results
$authors = $wp_user_query->get_results();
// Check for results
if (!empty($authors))
    echo '<ul>';
    // loop trough each author
    foreach ($authors as $author)
        // get all the user's data
        $author_info = get_userdata($author->ID);
        echo '<li>'.$author->ID.' '.$author_info->first_name.' '.$author_info->last_name.'</li>';
    echo '</ul>';
} else {
    echo 'No authors found';

For more reference see this.

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