Login Json php ke android

<?php
require_once"../konmysqli.php";
$respon = array();

if (isset($_GET["username"])) {
    $username= $_GET['username'];
    $password= $_GET['password'];

    $sql="SELECT * FROM `$tbpengelola` WHERE `username` ='$username' and `password`='$password'";
    $jum=getJum($conn,$sql);
    if ($jum>0) {
            $d=getField($conn,$sql);
            $record = array();

            $kode_pengelola=$d["kode_pengelola"];
            $nama_pengelola=$d["nama_pengelola"];
            $alamat=$d["alamat"];
            $telepon=$d["telepon"];
            $username=$d["username"];
            $password=$d["password"];
            $keterangan=$d["keterangan"];
            $status=$d["status"];

            $record["xmlbio"] = "$kode_pengelola#$nama_pengelola#$alamat#$telepon#$username#$password#$keterangan#$status";

            $respon["sukses"] = 1;
            $respon["record"] = array();

            array_push($respon["record"], $record);
             $respon["pesan"] = "$jum record";
            echo json_encode($respon);
        } else {
            $respon["sukses"] = 0;
            $respon["pesan"] = "0 record";
            echo json_encode($respon);
        }

} else {
    $respon["sukses"] = 0;
    $respon["pesan"] = "? lengkapi data";
    echo json_encode($respon);
}
?>

<?php

function getJum($conn,$sql){
  $rs=$conn->query($sql);
  $jum= $rs->num_rows;
    $rs->free();
    return $jum;
}

function getField($conn,$sql){
    $rs=$conn->query($sql);
    $rs->data_seek(0);
    $d= $rs->fetch_assoc();
    $rs->free();
    return $d;
}
?>