Sort data in alfabetical order from a txt file

I get my data from a txt file.
Is it possible to get that data and sort it in alfabetical order and then send it to my flash movie?
How do I do that?
Here´s the code I use to get the data from the txt file

	$filename = "nyheterinput.txt";

	$fp 	= fopen( $filename,"r"); 
	$Data 	= fread($fp, 800000); 
	fclose( $fp );

	$DataArray = split (".:::.", $Data);

	$NumEntries = count($DataArray) - 1;

	print "&TotalEntries=$NumEntries&NumLow=$NumLow&NumHigh=$NumHigh&GuestBook=";
	for ($n = $NumLow; $n < $NumHigh; $n++) {
	print $DataArray[$n];
		if (!$DataArray[$n]) {
			Print "<br><br><b>No More entries</b>";
		exit;
		}
	}

The text in the txt file is in html format does that affect the sorting in any way?
Thx

you can said acending or decending, but on a textfield, i don’t really know, try it with one of these words