php script failing with converted word perfect file (converted to word doc)

<?
########### Connection to database ##################################################
connection goes here...
#####################################################################################
 
 
##### file functions #####
function fileDelete($filepath,$filename) {
$success = FALSE;
if (file_exists($filepath.$filename)&&$filename!=""&&$filename!="n/a") {
unlink ($filepath.$filename);
$success = TRUE;
}
return $success;
}
 
 
function countFiles($strDirName)
{
if ($hndDir = @opendir($strDirName))
{
$intCount = 0;
while (false !== ($strFilename = @readdir($hndDir)))
{
if ($strFilename != "." && $strFilename != "..")
{
$intCount++;
}
}
@closedir($hndDir);
}
else
{
$intCount = -1;
}
 
return $intCount;
}
 
function size($size, $short = false) {
  if ($short) {
    $unit = array(
      'B', 'KB', 'MB', 'GB', 'TB',
      'PB', 'EB', 'ZB', 'YB'
     );
  } else {
    $unit = array(
      'bytes', 'kilobyte', 'megabyte',
      'gigabyte', 'terabyte', 'petabyte',
      'exabyte', 'zettabyte', 'yottabyte'
     );
  }
 
  $base = floor(log($size, 1024));
  return round($size / pow(1024, $base), 2).' '.$unit[$base];
}
 
 
if($_REQUEST["id"]) { 
$id = $_REQUEST["id"]; 
 
} else { 
$id = $_REQUEST["ID"];
}
 
if($id) {
// check to see if paper has been published
$s7 = "SELECT T FROM W WHERE ID=$id ORDER BY R DESC LIMIT 1";
$r7 = @mysql_query($s7);
$c7 = @mysql_fetch_row($r7);
$live = "$c7[0]";
}
 
if($_REQUEST["live"] == "live") {
echo "<font color=red>We are sorry but you can no longer edit this...</font>";
} else {
 
?>
<h1>Form</h1>
 
<p><a href="form.php?Submit=Submit&Code=<?=$_REQUEST["Code"];?>&Email=<?=$_REQUEST["Email"]?>"\">Go back.</a></p>
<form name="form" method="post" enctype="multipart/form-data" action="<? echo $_SERVER['PHP_SELF'];?>">
	<table border="0" cellspacing="2" cellpadding="2">
	<tr>
	<th>Attach Files</th>
	</tr>
	<tr><td><p>Upload files here...</p> Fields with a <span class="error">*</span> are required.<br></td>
	</tr>
	<tr class="even">
	<td>Upload File:<span class="important"> *</span></td>
	</tr>
	<tr class="even">
	<td><input type="file" name="File" size="50"><input type="hidden" name="ID" value="<?=$id;?>"></td>
	</tr>
	<tr>
	<td><p><input name="Upload" type="submit" class="formbutton" value=" Upload "></p></td>
	</tr>
<?
 
	  $r = $_REQUEST["delete"];
	  if ($_FILES['File']['name'] == "" && ($r[0] == "A" || $r == "") && isset($_REQUEST["Upload"])) {
	  echo "<span class=\"error\"><img src=\"error.gif\" />You did not submit a file!</span>";
	  } elseif(!preg_match("/(doc)/i",$_FILES['File']['name']) && ($r[0] == "A" || $r == "") && isset($_REQUEST["Upload"])) {
	  echo "<span class=\"error\"><img src=\"error.gif\" />The file you have submitted is not a doc!</span>";
	  } elseif ($_FILES['File']['size'] > 31457280 && ($r[0] == "A" || $r == "") && isset($_REQUEST["Upload"])) {
	  echo "<span class=\"error\"><img src=\"error.gif\" />The file is larger than 30MB...</span";
	  }
 
if (preg_match("/(doc)/i",$_FILES['File']['name']) && $_FILES['File']['size'] < 31457280 && isset($_REQUEST["Upload"]) && $_FILES['File']['size'] > 0) {
 
 
 
$cf = countFiles("../path/to/files/$id/");
 
if( $cf < 31 && $_REQUEST["Upload"]) { 
$folder = $_SERVER['DOCUMENT_ROOT']."/path/to/files/$id/";
 
if(!(is_dir($folder))) {
mkdir($folder,0777);
}
 
      //Check if the file with the same name is already exists on the server
      if (!file_exists($folder.$_FILES['File']['name'])) {
        //Attempt to move the uploaded file to it's new place
        copy($_FILES['File']['tmp_name'],"$folder".$_FILES['File']['name']);
		} else {
		echo "<span class=\"error\"><img src=\"error.gif\" />The file you are uploading already exists!</span>";
		}
		
} else {
echo "<span class=\"error\"><img src=\"error.gif\" />You have reached the limit of uploads...</span>";
}
 
}
 
if ($_REQUEST["DeleteFiles"]) {
// remove files
$x = $_REQUEST["delete"];
for ($i=0; $i < count($x); $i++) {
		$filepath = $_SERVER['DOCUMENT_ROOT']."/path/to/files/$id/";
		fileDelete($filepath,$x[$i]); 
			}
}
 
 
 
echo "<tr>\n\r<td colspan=\"2\">\n\r";
echo "<h3>Uploaded Files</h3>\n\r<code>";
 
				   $path = $_SERVER['DOCUMENT_ROOT']."/path/to/files/$id/";
				   $dh = @opendir($path);
				   
				   while (false !== ($file=@readdir($dh)))
				   {
				   if (substr($file,0,1)!="." && !stristr($file, "filter"))
				   $files[]=array(filemtime($path.$file),filesize($path.$file),$file);
				   }
				   @closedir($dh);
				   if ($files)
				   {
				   rsort($files);
				   
				   foreach ($files as $file)
				   echo "<a href=\"../path/to/files/$id/$file[2]\" target=\"_blank\">$file[2]</a> &nbsp;<em>".number_format(($file[1]/1024),2)."KB</em> &nbsp;<input name=\"delete[]\" type=\"checkbox\" value=\"$file[2]\"> <sup><span class=\"error\">remove</span></sup><br>\n\r";
				   }
				
		echo "\n\r<br><input name=\"DeleteFiles\" type=\"submit\" class=\"formbutton\" value=\" Remove \"></code>\n\r</td></tr>";
		echo "<tr>\n\r<td align=\"center\" colspan=\"2\">\n\r";
		echo "</td></tr></table>";
		echo "<input name=\"Emails\" type=\"hidden\" value=\"$_REQUEST[Email]\">";
		echo "<input name=\"Code\" type=\"hidden\" value=\"$_REQUEST[Code]\">";
		echo "<input name=\"live\" type=\"hidden\" value=\"$live\">";
		echo "</form>";
}
 
		?>

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