linking to external php script, possible?

like for javascript

[stef25]

im asking this as a php novice so forgive me if its a stupid question:

is there any way of placing php code in an external file, and then link to it? id like to do this to avoid too much code in my pages

for javascript the following solution exists:
<script type="text/javascript" src="images.js">

thanks
stef

[DanA]

You can use
include("filename");
or
require("filename");
with your script :
[us2.php.net...]