When I us a include like this:
<?
// Include new functions
include("func.php");

// Start timer
$starttime = microtimer();
?>
I get this result if you hit refresh on the the same page or go to a different page with the same included functions I get this error printed to the client browser:
Fatal error: Cannot redeclare microtimer() in func.php on line 2
Here is my function in func.php:
function microtimer()
{
	$mtime = microtime();
	$mtime = explode(" ",$mtime);
	$mtime = $mtime[1] + $mtime[0];
	return ($mtime);
}
I also recompiled a snapshot from 2 days ago it did the same.