How to set dynamic `home` and `siteurl` in WordPress?

Question

I config the multi-language setting dynamically using the locale filter. Which fetch the sub-domain name to determine the language.

function load_cu         


        

Answer 1

I've found another pretty way to achieve the work:

After I checked for the source code of the kernel, I found that there are distinct filters called option_xxx on each options.

So, for my task, I tried to use the option_siteurl and option_home filter to hold that options to load, just to prevent the option to load, maintaining the SERVER_NAME it has:

function replace_siteurl($val) {
    return 'http://'.$_SERVER['HTTP_HOST'];
}
add_filter('option_siteurl', 'replace_siteurl');
add_filter('option_home', 'replace_siteurl');

Using this way, it has no need to change the wp_config.php file, and can be easily add to a theme or a plugin.