debug problem

[Lassie]

I am trying to debug my download script and keep getting the php code displayed in the browser but I cant work out why.

The code is 500 lines so I have only posted the code from thepoint where it displays in th browser.

Any pointers welcome.

 

# Pagination Start.
				#------------------
				if ($records_per_page < 1)
				{
					$records_per_page = $totalfiles + 1;
				}
				if ($totalfiles > $records_per_page)
				{
					$totalpages = ceil($totalfiles/$records_per_page);
					$flag = 0;
					if ($currentpage > $totalpages)
				{
					$currentpage = 1;
				}
			}ELSE
					{
						$flag = 1;
					}

include_once('./includes/form_header.php');

			# Start main loop.
			#-----------------

				if ($match > 0)
	{
   							while (list ($key, $val) = each ($filename)) 
					{
						if ($key >= ($records_per_page-$records_per_page)+(($currentpage-1)*$records_per_page) && $key <= ($records_per_page-1)+(($currentpage-1)*$records_per_page))
						{
							$fileattr = explode("|", $val);

							# Fix and format Byte Length
							#---------------------------
								if ($fileattr[4] < pow(2,10)){
									$size = "$fileattr[4] B";
									}
								if ($fileattr[4] >= pow(2,10) && $fileattr[4] < pow(2,20)) {
									$size = round($fileattr[4] / pow(2,10), 2)." KB";
									}
								if ($fileattr[4] >= pow(2,20) && $fileattr[4] < pow(2,30)) {
									$size = round($fileattr[4] / pow(2,20), 2)." MB";
									}
								if ($fileattr[3] > pow(2,30)) {
									$size = round($fileattr[4] / pow(2,30), 2)." GB";
									}
								# Alternate colors between white and grey (or black and grey) on table entries.
								#------------------------------------------------------------------------------
								if ($color == $color1){
									$color = $color2;
								}ELSE{
									$color = $color1;
								}

								# Get correct icon file depending on file extention.
								#---------------------------------------------------
									$ext = substr ($fileattr[3], 1, 3);
									$ext = (strtolower($ext));
									$iconfile = "./file_info/thumbs/th_$fileattr[2]";
									$nw = 100;
									$nh = 64;
									$xtrainfo = "Jpeg image ";
									if (($ext == "jpg") && (!file_exists($iconfile)) && ($gdlib == 1))
									{
									$ht = thumbnail("$path$fileattr[2]",$thumbsize,"./file_info/thumbs/","th_$fileattr[2]");
									}

									# Get the correct icon file if image exists with same name as filename.
									#----------------------------------------------------------------------
									if (($ext <> "jpg") or ($gdlib == 0)){
										$xtrainfo = "$ext file";
										$iconfile = "file_info/icons/$icons/x.gif";
										$iconfile1 = "file_info/icons/$icons/$ext.gif";
										$iconfile2 = "file_info/thumbs/th_$fileattr[1].jpg";
										$nw = 64;
										$nh = 64;

									if (file_exists($iconfile1))
										{
										$iconfile = $iconfile1;
										}
									if (file_exists($iconfile2)) 
										{
										$iconfile = $iconfile2;
										}
								}

include_once('./includes/display_output.php');

						} 
			}
#-------------------------------------------------------------------------------------
# End main loop.

include_once('./includes/Footer.php');

?>