Auto-execute a function after everything else has executed
<p>Basically, I have a script that is included at the top of a page that does a bunch of things, the most important being an ob_start(). Then in the body of the page I have a variety of tags that will be replaced, such as {hello_word}. Then at the very end, I include another script that ends the output buffer, and makes the tag replacements with other code, then prints.</p>

<p>Is there any possible way to do this without having to include my second file at the end? Is there some simple way I can automatically execute a function or include a file at the very end?</p>
