last modified in footer of page

[sechany]

I am trying to put a "last modified" in a footer of a page. I want to get the last modified date of the page that calls the footer. I have used getlastmod(). This seems to work when the page is a php page, it does not work on the pages that are html.
Can anyone give me some insight on this??

[sarahk]

I have a script I got from codewalkers.com and in there I have the last update date for my files

    $fTime = filemtime($file); 
	if ($fTime != false)
	{
      $today = getdate($fTime); 
      $month = $today['month'];  

      $mday = $today['mday'];  

      $year = $today['year'];  

	  $fDate = "$month $mday, $year";
	}
	else
	{
	  $fDate = " ";
	}

The "only" problem I have encountered with this is if the files are written by php the datestamp is readable (regardless of the extension) but if uploaded from they aren't.