Getting the URI of running bootstrap file, not the given URI

[spaze]

I have a bootstrap file called index.php for a Zend Framework project. How can I get in that script the URL of the index.php?

 

For example, if I run my Zend Framework app at http://www.mydomain.com/myapp it will call the index.php bootsrtap in it.

 

If I enter http://www.mydomain.com/myapp/user/login, I would like to figure out how to get the "http://www.mydomain.com/myapp" returned as this essentially is the location of the bootsrap file called despite what the requested URI is.

 

Anyone have an idea?