Send android activity variable to php script - php

Question

I'm trying to read a php script URL through QR code and then retrieve MAC of device, after that, I want to send the MAC to php script but android app is crashing if I try it.
I'm also opening the url in a browser using intent. What should I write at php side to retrieve the MAC address and any changes in android activity?
Code:
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_decoder);
mydecoderview = (QRCodeReaderView) findViewById(R.id.qrdecoderview);
mydecoderview.setOnQRCodeReadListener(this);
myTextView = (TextView) findViewById(R.id.exampleTextView);
line_image = (ImageView) findViewById(R.id.red_line_image);
TranslateAnimation mAnimation = new TranslateAnimation(
TranslateAnimation.ABSOLUTE, 0f,
TranslateAnimation.ABSOLUTE, 0f,
TranslateAnimation.RELATIVE_TO_PARENT, 0f,
TranslateAnimation.RELATIVE_TO_PARENT, 0.5f);
mAnimation.setDuration(1000);
mAnimation.setRepeatCount(-1);
mAnimation.setRepeatMode(Animation.REVERSE);
mAnimation.setInterpolator(new LinearInterpolator());
line_image.setAnimation(mAnimation);
Button button2 = (Button) findViewById(R.id.button2);
button2.setOnClickListener(
new View.OnClickListener() {
public void onClick(View v) {
/*String ur="http://192.168.0.105/project/rec.html";
Intent intent1=new Intent("android.intent.action.VIEW");
if (!ur.contains("http://"))
ur = "http://" + ur;
intent1.setData(Uri.parse(ur));
startActivity(intent1);// Perform action on click*/
}
});
}
// Called when a QR is decoded
// "text" : the text encoded in QR
// "points" : points where QR control points are placed
#Override
public void onQRCodeRead(String text, PointF[] points) {
WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
WifiInfo wInfo = wifiManager.getConnectionInfo();
action = wInfo.getMacAddress();
HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost(addr);
try {
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair(1);
nameValuePairs.add(new BasicNameValuePair("action",action));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
ResponseHandler<String> responseHandler = newBasicResponseHandler();
String response = httpclient.execute(httppost, responseHandler);
String reverseString = response;
} catch (ClientProtocolException e) {
} catch (IOException e) {
}
Intent localIntent = new Intent("android.intent.action.VIEW");
if (!text.contains("http://"))
text = "http://" + text;
addr=text;
localIntent.setData(Uri.parse(text));
startActivity(localIntent);
}

Answer 1

error_reporting(0);
include("db_config.php");
$response = array();
if (isset($_GET['id'])) {
$id = $_GET['id'];
$item = $_GET['item'];
$r = mysql_query("select Department_id from student where st_id = '$id'");
$row = mysql_fetch_array($r);
$Department_id = $row[0];
$r = mysql_query("select Subject_name from subject where Subject_code ='$item'");
$row = mysql_fetch_array($r);
$Subject_name = $row[0];
$result = mysql_query("INSERT INTO `sis_fyp`.`student-subject` (`st_id`, `Subject_code`, `Status`, `grade`, `Department_id`, `Subject_name`) VALUES ('$id', '$item', 'Repeat', 'W', '$Department_id', '$Subject_name');");
if ($result>0) {
$response["success"] = 1;
} else {
$response["success"] = 0;
}
// echoing JSON response
echo json_encode($response);
}
Just make a php script like above
and pass your url in and android like:
wwww.yoururl.com?id=$id&item=$item