这个update_option 钩子可用于在选项值更改时运行操作：

function wpse_330204_option_updated( $option_name, $old_value, $new_value ) {
    if ( $option_name === \'name_of_option_you_want_to_check\' ) {
        if ( $new_value !== $old_value  ) {
            // Value has changed, run code here.
        }
    }
}
add_action( \'update_option\', \'wpse_330204_option_updated\', 10, 3 );