android json post data not being displayed/recieved in php -

i trying send data android app displayed in php page. according logs put in place, data send , has correct values on php page, displays empty array:

array() 

this php file:

<?php  if ($_server['request_method'] == 'post') {     echo "post made";   }   $json_received = $_post["json"]; $json_test = $_post["test"];   $json = file_get_contents('php://input');  $obj = json_decode($json_test); $obj1 = json_decode($json_received); $obj2 = json_decode($json);   echo $obj1; echo $obj;  echo $json; echo $json_test; echo $json_received;  print_r($_post);  ?> 

java code:

public class confirmfragmenttab extends fragment implements onitemclicklistener,     onitemlongclicklistener {  public static final string arg_item_id = "sales_list";   listview salelistview; arraylist<salesreciepts> salesreciept; saleslistadapter saleslistadapter; productsdbhelper db, dp; activity activity; context context;  button push; private string post_products = "http://bi.test.com/tests/products_api/post_products.php";  inputstream = null;  private getemptask task; protected fragmentactivity mactivity;   public void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);      activity = getactivity();     context = getactivity();      db = new productsdbhelper(activity); }  public void onattach(activity activity) {     super.onattach(activity);     mactivity = (fragmentactivity) activity; }  @override public view oncreateview(layoutinflater inflater, viewgroup container,                          bundle savedinstancestate) {     view rootview = inflater.inflate(r.layout.confirm_layout, container, false);     findviewsbyid(rootview);       task = new getemptask(activity);     task.execute((void) null);      salelistview.setonitemclicklistener(this);     salelistview.setonitemlongclicklistener(this);     globalapp.data().context = getactivity();      push.setonclicklistener(new view.onclicklistener() {         @override         public void onclick(view v) {               //postlist();             new pushinvoice().execute();          }     });      return rootview; }  private void findviewsbyid(view view) {     salelistview = (listview) view.findviewbyid(r.id.list_sale);     push = (button) view.findviewbyid(r.id.sendrecords); }   @override public void onresume() {     super.onresume(); }   @override public void onitemclick(adapterview<?> list, view arg1, int position,                         long arg3) {     salesreciepts sale = (salesreciepts) list.getitematposition(position);      if (sale != null) {         bundle arguments = new bundle();         arguments.putparcelable("selectedsale", sale);         customeditdialog customdialogfragment = new customeditdialog();         customdialogfragment.setarguments(arguments);         customdialogfragment.show(getfragmentmanager(),                 customeditdialog.arg_item_id);     } }  @override public boolean onitemlongclick(adapterview<?> parent, view view,                                int position, long arg3) {     salesreciepts sale = (salesreciepts) parent.getitematposition(position);      // use asynctask delete database     db.delete(sale);     saleslistadapter.remove(sale);     return true; }  public class getemptask extends asynctask<void, void, arraylist<salesreciepts>> {      private final weakreference<activity> activityweakref;      public getemptask(activity context) {         this.activityweakref = new weakreference<activity>(context);     }      @override     protected arraylist<salesreciepts> doinbackground(void... arg0) {         arraylist<salesreciepts> salelist = db.getcurrentsalesrecords();         return salelist;      }      @override     protected void onpostexecute(arraylist<salesreciepts> slist) {         if (activityweakref.get() != null                 && !activityweakref.get().isfinishing()) {             log.d("sales", slist.tostring());             salesreciept = slist;             if (slist != null) {                 if (slist.size() != 0) {                     saleslistadapter = new saleslistadapter(activity,                             slist);                     salelistview.setadapter(saleslistadapter);                 } else {                     toast.maketext(getactivity(), "no sales records",                             toast.length_long).show();                 }             }          }     } }   private class pushinvoice extends asynctask<void, void, void> {     @override     protected void onpreexecute() {         super.onpreexecute();      }      @override     protected void doinbackground(void... arg0) {          //arraylist<recieptheader> invoicelist = db.getinvoiceheader();         arraylist<salesreciepts> entrylist = db.getsalesrecords();           list<namevaluepair> postvars = new arraylist<namevaluepair>();          postvars.add(new basicnamevaluepair("json", string.valueof(entrylist)));         postvars.add(new basicnamevaluepair("test", "hello"));          servicehandler jsonparser = new servicehandler();         try {               httpclient httpclient = new defaulthttpclient();              // setup http post method passing url in case             // database offline , ip address in case of localhost database             httppost httppost = new httppost(post_products);             //httppost httppost = new httppost("http://192.168.1.33/connect_to_new_table.php");              // pass on names of values inside post             stringentity entity = new stringentity(postvars.tostring());             httppost.setentity(entity);              httppost.setentity(new urlencodedformentity(postvars));             responsehandler<string> responsehandler = new basicresponsehandler();             final string response = httpclient.execute(httppost,                     responsehandler);              = entity.getcontent();              if (response != null)                 log.e("sent", postvars.get(1).getvalue().tostring());             log.e("response", response);           } catch (exception e) {             log.e("error", e.tostring());         }          return null;     }      @override     protected void onpostexecute(void result) {         super.onpostexecute(result);      }  } } 

update: logs sent values. postvars name value list of values sent

08-19 10:19:22.194    1708-1725/com.example.prototype e/sent﹕ hello 08-19 10:19:22.194    1708-1725/com.example.prototype e/response﹕ post madejson=%5bsalesreciepts+%5bid%3d0%2c+product_description%3dbell+lager+500ml+ret+25x01+longneck%2c+qty%3d23%2c+unit%3d3658%2c+total%3d84134.0%5d%5d&test=hellohello[salesreciepts [id=0, product_description=bell lager 500ml ret 25x01 longneck, qty=23, unit=3658, total=84134.0]]array ( [json] => [salesreciepts [id=0, product_description=bell lager 500ml ret 25x01 longneck, qty=23, unit=3658, total=84134.0]] [test] => hello ) 

i did similar thing weeks ago , json data istruction:

$json = json_decode(file_get_contents('php://input'), true); 

and json['namevar'] values.

you can find project on github if can helps you.