uploading files from java to php server and saving in mysql database -

this code in java application

url url = new url("http://gguproject.jelastic.servint.net/upload.php");          string filename="c:/square.png";         fileinputstream fis=new fileinputstream(filename); httpurlconnection hp=(httpurlconnection)url.openconnection(); hp.setdoinput(true); hp.setdooutput(true); hp.setinstancefollowredirects(false); hp.setrequestmethod("post"); hp.setrequestproperty("connection", "keep-alive"); string boundary = "*****"; string lineend = "\r\n"; string twohyphens = "--"; hp.setrequestproperty("content-type", "multipart/form-data;boundary="+boundary);  dataoutputstream dos = new dataoutputstream( hp.getoutputstream() );  dos.writebytes(twohyphens + boundary + lineend);  dos.writebytes("content-disposition: form-data; name=\"uploadedfile\";filename=\"" + filename +"\"" + lineend);                         dos.writebytes(lineend);     // create buffer of maximum size                          int bytesavailable = fis.available();                         int maxbuffersize = 1024;                         int buffersize = math.min(bytesavailable, maxbuffersize);                         byte[] buffer = new byte[buffersize];                          // read file , write form...                          int bytesread = fis.read(buffer, 0, buffersize);                          while (bytesread > 0) {                                 dos.write(buffer, 0, buffersize);                                 bytesavailable = fis.available();                                 buffersize = math.min(bytesavailable, maxbuffersize);                                 bytesread = fis.read(buffer, 0, buffersize);                         }                         // send multipart form data necesssary after file data...                          dos.writebytes(lineend);                         dos.writebytes(twohyphens + boundary + twohyphens + lineend);                         fis.close();                         dos.flush();                         dos.close();                         string line; bufferedreader reader = new bufferedreader(new inputstreamreader(hp.getinputstream())); line = reader.readline(); system.out.println(line); 

this php code server side. output null always.

<?php include('dbc.php'); $filename = $_files['userfile']['name']; $tmpname  = $_files['userfile']['tmp_name']; $filesize = $_files['userfile']['size']; $filetype = $_files['userfile']['type']; $email="sangwan.ritesh@yahoo.in"; $hash="sdfhghgsdfhguidutetuhgdfjgdfhslgjhdfjgh"; $fp      = fopen($tmpname, 'r'); $content = fread($fp, filesize($tmpname)); $content = addslashes($content); fclose($fp);  if(!get_magic_quotes_gpc()) {     $filename = addslashes($filename); } $query = "insert files (email, file_name, file_ext, file_size, file_hash,file_data )   values ('$email','$filename', '$filetype', '$filesize','$hash', '$content')"; mysqli_query($dbc,$query); if(mysqli_affected_rows($dbc)==1){   echo "successfully uploaded"; }  ?> 

i getting null php means row not being inserted database. problem ?