How can I retrieve a file path?

[PGA]

Does anyone know how can I retrieve the full path of a file in PHP?. Thanks in advance.

[Son Nguyen]

I don't understand what you are trying to do. Do you mean:
$SCRIPT_FILENAME or $PHP_SELF?

[PGA]

What I'd like to know is how I can retrieve the path where the script file is located in the server.
Eg: /wwwroot/blahblahblah/myphpfile.php. I know this can be done in ASP using Server.MapPath() but I don't know how to do it in PHP.

[Son Nguyen]

Okay, so it's
$DOCUMENT_ROOT or getenv("DOCUMENT_ROOT"); both are equivalent.

[PGA]

Thanks Son Nguyen!

[Philip Olson]

Be sure to run the following, it contains some very good information to know about your server :

<?php 

    phpinfo();

?>

[freakysid]

I think you mean

<?php
echo phpinfo();
?>

A program which, when executed produces no output, turns a computer into a very expensive source of heat

[Son Nguyen]

I don't think you need to echo it, sid.

[freakysid]

oh, yes so I see the function does the outputing!

How silly of me

[Halsey]

Yes, outputs itself very neatly too, probably one of the most useful features I've found since I started playing with PHP. Great when you want to set up your own box for development, and make sure the environment matches the one you're going to publish to on the web. Makes it very easy to see just how PHP is set up on the server even if you don't have any way to access the actual configuration files.