Untitled

function bmacx_localize_script() {
    // Get the current site object
    $current_site = get_current_site();
    // Pass the site ID or domain to JavaScript
    wp_localize_script( 'your-script-handle', 'bmacxSiteInfo', [
        'siteId' => $current_site->id,
        'siteDomain' => $current_site->domain
    ]);
}
add_action( 'wp_enqueue_scripts', 'bmacx_localize_script' );