Using WordPress ‘admin_footer’ PHP action

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The admin_footer WordPress PHP action allows you to print scripts or data before the default footer scripts in the WordPress admin area.

Usage

add_action('admin_footer', 'your_custom_function_name');
function your_custom_function_name() {
    // your custom code here
    echo $data;
}

Parameters

  • $data (string) – The data you want to print before the default footer scripts.

More information

See WordPress Developer Resources: admin_footer

Examples

This example adds a simple JavaScript alert in the admin footer.

add_action('admin_footer', 'add_custom_admin_footer_script');
function add_custom_admin_footer_script() {
    echo "<script>alert('Hello from the admin footer!');</script>";
}

This example adds custom CSS to style an element in the WordPress admin area.

add_action('admin_footer', 'add_custom_admin_footer_css');
function add_custom_admin_footer_css() {
    echo '<style>.example-class { color: red; }</style>';
}

This example prints the current logged-in user’s information in the admin footer.

add_action('admin_footer', 'print_current_user_info');
function print_current_user_info() {
    $current_user = wp_get_current_user();
    echo 'Logged in as: ' . $current_user->display_name;
}

This example adds a “Back to top” button to the admin footer.

add_action('admin_footer', 'add_back_to_top_button');
function add_back_to_top_button() {
    echo '<a href="#" class="back-to-top" style="position: fixed; bottom: 20px; right: 20px;">Back to top</a>';
    echo "<script>document.querySelector('.back-to-top').addEventListener('click', () => window.scrollTo(0, 0));</script>";
}

This example displays the total number of published posts in the admin footer.

add_action('admin_footer', 'display_published_posts_count');
function display_published_posts_count() {
    $count_posts = wp_count_posts();
    echo 'Published posts: ' . $count_posts->publish;
}