Android : PHP Notice: Undefined offset: 1 when trying inset data from array to mysql

I am creating an android app where user creates profile and it gets saved in to sqlite. when connected to internet, it sync to mysql. I am able to pass the data from sqlite to php as an array but am not able to insert it to mysql. Not sure what i am doing wrong since i am new to php. I feel the problem is with this line.

$res = $db->storeUser($data[$i]->PID,$data[$i]->AID, $data[$i]->Logo,$data[$i]->Name, $data[$i]->Phone, $data[$i]->Employeeid, $data[$i]->Jobtitle, $data[$i]->Email, $data[$i]->Companyname, $data[$i]->Address, $data[$i]->City, $data[$i]->Province, $data[$i]->Postal);

Any help with details would be really appreciated.

<?php
include_once './db_functions.php';
//Create Object for DB_Functions clas
$db = new DB_Functions(); 
//Get JSON posted by Android Application
$json = $_POST["usersJSON"];
//Remove Slashes
 if (get_magic_quotes_gpc()){
 $json = stripslashes($json);
}
//Decode JSON into an Array
$data = json_decode($json);
  //Util arrays to create response JSON
  $a=array();
  $b=array();
  $n=count($data);
  print_r(array_values($data));
  //Loop through an Array and insert data read from JSON into  DB
  for($i=0; $i<=$n; $i++){
  error_log(print_r($n,true));
  error_log(print_r($i,true));
  $j=$data[$i]->PID;
  error_log(print_r($j,true));
  //Store User into  DB
  $res = $db->storeUser($data[$i]->PID,$data[$i]->AID, $data[$i]->Logo,$data[$i]->Name, $data[$i]->Phone, $data[$i]->Employeeid, $data[$i]->Jobtitle, $data[$i]->Email, $data[$i]->Companyname, $data[$i]->Address, $data[$i]->City, $data[$i]->Province, $data[$i]->Postal);

  //Based on inserttion, create JSON response
if($res){
$b[“id”] = $data[$i]->PID;
$b[“syncstatus”] = 'yes';
array_push($a,$b);
}else{$b[“id”] = $data[$i]->PID;
      $b[“syncstatus”] = 'no';
      array_push($a,$b);}
}
//Post JSON response back to Android Application
echo json_encode($a);

Here is the error code

[08-Mar-2015 07:44:19 America/Denver] 1 [08-Mar-2015 07:44:19 America/Denver] 1 [08-Mar-2015 07:44:19 America/Denver] PHP Notice: Undefined offset: 1 in /home2/pctechni/public_html/mirphp/insertuser.php on line 22 [08-Mar-2015 07:44:19 America/Denver] PHP Notice: Trying to get property of non-object in /home2/pctechni/public_html/mirphp/insertuser.php on line 22 [08-Mar-2015 07:44:19 America/Denver] [08-Mar-2015 07:44:19 America/Denver] PHP Notice: Undefined offset: 1 in /home2/pctechni/public_html/mirphp/insertuser.php on line 25 [08-Mar-2015 07:44:19 America/Denver] PHP Notice: Trying to get property of non-object in /home2/pctechni/public_html/mirphp/insertuser.php on line 25 [08-Mar-2015 07:44:19 America/Denver] PHP Notice: Undefined offset: 1 in /home2/pctechni/public_html/mirphp/insertuser.php on line 25 [08-Mar-2015 07:44:19 America/Denver] PHP Notice: Trying to get property of non-object in /home2/pctechni/public_html/mirphp/insertuser.php on line 25 [08-Mar-2015 07:44:19 America/Denver] PHP Notice: Undefined offset: 1 in /home2/pctechni/public_html/mirphp/insertuser.php on line 25 [08-Mar-2015 07:44:19 America/Denver] PHP Notice: Trying to get property of non-object in /home2/pctechni/public_html/mirphp/insertuser.php on line 25 [08-Mar-2015 07:44:19 America/Denver] PHP Notice: Undefined offset: 1 in /home2/pctechni/public_html/mirphp/insertuser.php on line 25 [08-Mar-2015 07:44:19 America/Denver] PHP Notice: Trying to get property of non-object in /home2/pctechni/public_html/mirphp/insertuser.php on line 25 [08-Mar-2015 07:44:19 America/Denver] PHP Notice: Undefined offset: 1 in /home2/pctechni/public_html/mirphp/insertuser.php on line 25 [08-Mar-2015 07:44:19 America/Denver] PHP Notice: Trying to get property of non-object in /home2/pctechni/public_html/mirphp/insertuser.php on line 25 [08-Mar-2015 07:44:19 America/Denver] PHP Notice: Undefined offset: 1 in /home2/pctechni/public_html/mirphp/insertuser.php on line 25 [08-Mar-2015 07:44:19 America/Denver] PHP Notice: Trying to get property of non-object in /home2/pctechni/public_html/mirphp/insertuser.php on line 25 [08-Mar-2015 07:44:19 America/Denver] PHP Notice: Undefined offset: 1 in /home2/pctechni/public_html/mirphp/insertuser.php on line 25 [08-Mar-2015 07:44:19 America/Denver] PHP Notice: Trying to get property of non-object in /home2/pctechni/public_html/mirphp/insertuser.php on line 25 [08-Mar-2015 07:44:19 America/Denver] PHP Notice: Undefined offset: 1 in /home2/pctechni/public_html/mirphp/insertuser.php on line 25 [08-Mar-2015 07:44:19 America/Denver] PHP Notice: Trying to get property of non-object in /home2/pctechni/public_html/mirphp/insertuser.php on line 25 [08-Mar-2015 07:44:19 America/Denver] PHP Notice: Undefined offset: 1 in /home2/pctechni/public_html/mirphp/insertuser.php on line 25 [08-Mar-2015 07:44:19 America/Denver] PHP Notice: Trying to get property of non-object in /home2/pctechni/public_html/mirphp/insertuser.php on line 25 [08-Mar-2015 07:44:19 America/Denver] PHP Notice: Undefined offset: 1 in /home2/pctechni/public_html/mirphp/insertuser.php on line 25 [08-Mar-2015 07:44:19 America/Denver] PHP Notice: Trying to get property of non-object in /home2/pctechni/public_html/mirphp/insertuser.php on line 25 [08-Mar-2015 07:44:19 America/Denver] PHP Notice: Undefined offset: 1 in /home2/pctechni/public_html/mirphp/insertuser.php on line 25 [08-Mar-2015 07:44:19 America/Denver] PHP Notice: Trying to get property of non-object in /home2/pctechni/public_html/mirphp/insertuser.php on line 25 [08-Mar-2015 07:44:19 America/Denver] PHP Notice: Undefined offset: 1 in /home2/pctechni/public_html/mirphp/insertuser.php on line 25 [08-Mar-2015 07:44:19 America/Denver] PHP Notice: Trying to get property of non-object in /home2/pctechni/public_html/mirphp/insertuser.php on line 25 [08-Mar-2015 07:44:19 America/Denver] PHP Notice: Undefined offset: 1 in /home2/pctechni/public_html/mirphp/insertuser.php on line 25 [08-Mar-2015 07:44:19 America/Denver] PHP Notice: Trying to get property of non-object in /home2/pctechni/public_html/mirphp/insertuser.php on line 25 [08-Mar-2015 07:44:19 America/Denver]