<p>I have two PHP files that I need to link. How can I link the files together using PHP? The effect I want is to have the user click a button, some information is proccessed on the page, and then the result is displayed in a different page, depending on the button the user clicked.Thanks</p>

It sounds like you might want an HTML form:
```
```
<form method="post" action="other_file.php">
    <input name="foo" type="..."... /> ...
</form>
```
```
Then
```
$_POST["foo"]
```
will contain the value of that input in other_file.php.