The Admin Footer display is the default and most popular way to view your site's version information at a glance.

Admin Footer

The Admin Footer integration is the core feature of Version Info. It replaces the default WordPress footer text with a clean, informative line showing your site's technical stack.

What It Displays

The admin footer shows the following information on every WP-Admin page:

  • WordPress version (with a one-click update link if an update is available)
  • PHP version
  • MySQL version
  • Web Server software (e.g., Apache, Nginx, LiteSpeed)

Enabling / Disabling

The Admin Footer display is enabled by default upon activation. To toggle it:

  1. Navigate to Settings > Version Info > General.
  2. Check or uncheck Show in Admin Footer.
  3. Click Save Changes.

When a WordPress core update is available, Version Info automatically appends an "Update available" link next to the current WordPress version, linking directly to the Dashboard > Updates page.

How It Works

Version Info hooks into the admin_footer_text WordPress filter to replace the default footer content. The version string is assembled from core WordPress functions and PHP's built-in constants, ensuring accuracy without any external API calls.

Customizing the Output

Developers can modify the footer output using the version_info_footer_details filter:

add_filter( 'version_info_footer_details', 'customize_footer_output' );

function customize_footer_output( string $footer_text ): string {
    // Append custom text to the version info footer
    $footer_text .= ' | Custom Server ID: ' . gethostname();
    return $footer_text;
}

hooks-and-filters.md