Download doc file with php encoding error - php

Question

I have a php code for downloading file based on file_id from URL. All works great, but i have problems with downloading files with extension .doc
Here is my code, what im doing wrong?
$file = mysql_fetch_array(mysql_query("SELECT * FROM ".sqlprefix."files WHERE id = '".$_GET['id']."'"));
$tmp = explode(".",$file['url']);
$tmp = $tmp[count($tmp)-1];
// $tmp = "doc";
switch ($tmp) {
case "pdf": $ctype="application/pdf"; break;
case "exe": $ctype="application/octet-stream"; break;
case "zip": $ctype="application/zip"; break;
case "docx": $ctype="application/vnd.openxmlformats-officedocument.wordprocessingml.document"; break;
case "doc": $ctype="application/msword"; break;
case "csv":
case "xls":
case "xlsx": $ctype="application/vnd.ms-excel"; break;
case "ppt": $ctype="application/vnd.ms-powerpoint"; break;
case "gif": $ctype="image/gif"; break;
case "png": $ctype="image/png"; break;
case "jpeg":
case "jpg": $ctype="image/jpg"; break;
case "tif":
case "tiff": $ctype="image/tiff"; break;
case "psd": $ctype="image/psd"; break;
case "bmp": $ctype="image/bmp"; break;
case "ico": $ctype="image/vnd.microsoft.icon"; break;
default: $ctype="application/force-download";
}
$baseName = basename($file['url_del']);
$fileSize = filesize($file['url_del']);
$url = $file['url_del'];
// $ctype = "application/msword";
// $baseName = "File name with spaces and diacritic ěščěšč.doc"
// $fileSize = "214016"
// $url = "./files/File name with spaces and diacritic ěščěšč.doc";
header('Content-Description: File Transfer');
header('Content-Type: '.$ctype);
header('Content-Disposition: attachment; filename='.$baseName);
header('Expires: 0');
header('Pragma: public');
header('Content-Length: '.$fileSize);
readfile($url);
exit;
After downloading file in word i get this. I think, that problem must be in encoding...