Is there any benefit perfomance wise when defining a constant in the wp-config.php like so

```
<php define('PATH_TO_THEME', get_stylesheet_directory_uri() ); ?>

```

and then referring to `PATH_TO_THEME` instead using `get_stylesheet_directory_uri()` multiple times?

I got this from a wordpress handbook, saying that when you call this function multiple times it consumes more performance in comparison to using a constant like PATH\_TO\_THEME. Is that true? And why?

Or does it only give a performance boost when using an absolute uri to define the constant like so
`<php define('PATH_TO_THEME', 'http://example.com/wp-content/themes/themename' ); ?>`This of course would mean you had to change the uri anytime the url of the website or the location of the stylesheet directory changed.