Are there functions for file paths, instead of just urls

Question

Is there any equivalent to functions like plugins_url() and content_url() that give you either the relative paths or the file path.

For instance, instead of

http://localhost:8888/wordpress-3.2/wp-content

I want:

/Users/username/Sites/wordpress-3.2/wp-content

I know that I can build this path using the ABSPATH constant, but I'm specifically interested in learning if there are built in functions to handle this.

In the meantime, I'll probably just write a function to swap the url for the abspath.

EDIT: Here's the simple function that I wrote to handle this:

function get_file_path($url)
{
    return str_replace(site_url(), ABSPATH, $url);
}

Seems to do the trick, but I'd much rather use built in functions if available.

Answer 1

There aren't any for plugins, but you can (and should) use WP_CONTENT_DIR, instead of ABSPATH.

For themes you have locate_template().

Answer 2

There is plugin_dir_path(), but it's not exact analogue of plugins_url().

Also ABSPATH is unreliable for how you use it, related paths can be easily redefined. See default-constants.php file.

Namely there are:

• WP_CONTENT_DIR
• WP_PLUGIN_DIR
• WPMU_PLUGIN_DIR