& converted into & when $_POST request is called? - php

Question

We are working on an application which has 2 modules.
Android Application.
PHP Application
PHP backend application runs on an Apache Server with Centos Server.
Android application basically clicks images, send to the server along with gps coordinates etc form information.
Now the problem arises when the image file is created on the server. When android app calls the url the '&' character is replaced by & amp;, sometimes even by & amp;& amp; and this problem repeats in some of the cases. Once this conversion thing happens, image file is not created properly.
How it can be resolved?
Same code was working alright from past year, this problem begin to arise from last month only....
Following is the code for saving the images at server end :
foreach($_POST as $key => $value) {
$_POST[$x] = $value;
}
$base=$_REQUEST['image'];
$nm=$_REQUEST['name'];
$binary=base64_decode($base);
if(file_exists("uploaded_images/".$nm.".jpg")) {
unlink("uploaded_images/".$nm.".jpg");
}
header('Content-Type: bitmap; charset=utf-8');
$str="uploaded_images/".$nm.".jpg";
$file = fopen($str, 'wb');
fwrite($file, $binary);
fclose($file);
chmod($file,0777);
$ok=1;
echo $ok;
Following is the error log which is encountered if image is not properly saved.
PHP Notice: Undefined index: name in /var/www/html/cbd/def/filesubmitnew.php
Note : filesubmitnew.php is the file name of the above code.
In Android Application for this is how the url is called:
To Create image:
if(buttontext.equals("Img1")) {
Bitmap bitmap = (Bitmap) data.getExtras().get("data");
v.setImageBitmap(bitmap);
buttontext="";
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 20, stream);
byte [] byte_arr = stream.toByteArray();
String str1 = Base64.encodeBytes(byte_arr);
System.out.println(""+str1);
if(feuser.equals("offline_access")){
System.out.println("++==--SD CARD");
File externalStorage = Environment.getExternalStorageDirectory();
File folder = new File(externalStorage.getAbsolutePath() +mainFolder + caseId);
if (!folder.exists()) {
folder.mkdir();
}
File pictureFile = new File(externalStorage.getAbsolutePath()+mainFolder+caseId, "1.jpg");
System.out.println(pictureFile);
pictureFile.createNewFile();
FileOutputStream fOut = new FileOutputStream(pictureFile);
OutputStreamWriter myOutWriter = new OutputStreamWriter(fOut);
myOutWriter.append(str1);
myOutWriter.close();
fOut.close();
Toast.makeText(getBaseContext(),"Done writing SD "+pictureFile,Toast.LENGTH_SHORT).show();
}
else {
Intent i = new Intent ("com.keyboardlabs.newbankge.CameraUploadService");
try {
i.putExtra("imageparams", str1);
i.putExtra("ref_id", caseId);
i.putExtra("imageId", "1");
i.putExtra("CaseType",caseType);
}
catch (Exception e) {
e.printStackTrace();
}
getApplicationContext().startService(i);
}
Following is the camerauploadservice
protected void onHandleIntent(Intent arg0) {
String imageDataBase64encoded = arg0.getStringExtra("imageparams");
String caseID = arg0.getStringExtra("ref_id");
String imageId = arg0.getStringExtra("imageId");
String caseType =arg0.getStringExtra("CaseType");
System.out.println("image_ref="+caseID+"iamgeID="+imageId+"caseType="+caseType+" URL="+URL);
callWebService(imageDataBase64encoded,caseID,imageId,caseType);
}
public void callWebService(String imageData,String refId,String imageId,String caseType){
HttpClient httpclient = null;
ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("image",imageData));
nameValuePairs.add(new BasicNameValuePair("ref_id",refId));
nameValuePairs.add(new BasicNameValuePair("imageId",imageId));
nameValuePairs.add(new BasicNameValuePair("CaseType",caseType));
try{
httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(URL);
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response = httpclient.execute(httppost);
String the_string_response = convertResponseToString(response);
System.out.println( "Response= " + the_string_response);
}catch(Exception e){
System.out.println( "0" + e.getMessage());
System.out.println("Error in http connection "+e.toString());
}
httpclient.getConnectionManager().shutdown();
}