$option_name = 'uabb_lite_redirect'' ;
$new_value = 'false' ;

if ( get_option( $option_name ) !== false ) {

    // The option already exists, so we just update it.
    update_option( $option_name, $new_value );

} else {

    // The option hasn't been added yet. We'll add it with $autoload set to 'no'.
    $deprecated = null;
    $autoload = 'no';
    add_option( $option_name, $new_value, $deprecated, $autoload );
}