Wordpress - Get root directory?

Question

How can I get the root directory of my site? I want to use it as the src for <img>.

For example If I install the wordpress on www.mysite.com/blog/, the root is /blog.

But If I install it to www.mysite.com/test/blog, the root is /test/blog.

I tried to use the snippet from this question, but it returns the whole path as seen in FTP. So instead of returning just /blog, it returns /home/public_html/blog which won't work if used as src in image tag.

Any solution? Thanks.

Answer 1

You may use site_url() (eventually with echo) to get absolute path with server name and directory. Also, have a look at wordpress documentation about similar functions & what they provide.