Would Using <?php $_SERVER['REQUEST_URI']?> be wise?

[Kaizen Maven]

Hi, we have a main server that holds our actual website and then a test server that we can test different things on.  The domain for the real server and the test server are different. So I thought about using <?php $_SERVER['REQUEST_URI']?> for to replace all the full paths.

 

For example, instead of having: 

<a href="http://www.mydomain.com/article/item1.php/">Item 1</a>

.  I could just put

<a href="<?php $_SERVER['REQUEST_URI']?>/article/item1.php/">Item 1</a>

.  Which would bring back the same thing.  Would this be wise?

 

Is there anything I need to know before I do this?

 

Thanks

[trq]

<a href="http://<?php $_SERVER['SERVER_NAME']?>/article/item1.php/">Item 1</a>

[Kaizen Maven]

Thank you, I'm guessing SERVER_NAME would be a better option, as it could be used for both servers.