//build url data to be sent to server
        ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
        nameValuePairs.add(new BasicNameValuePair("username",username));
        nameValuePairs.add(new BasicNameValuePair("password",password));

        String result = "";
        InputStream is = null;
        //http post
        try{
            HttpClient httpclient = new DefaultHttpClient();
            HttpPost httppost = new HttpPost("http://10.0.2.2/PasswordCheck.php");
            httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
            HttpResponse response = httpclient.execute(httppost);
            HttpEntity entity = response.getEntity();
            is = entity.getContent();
        }catch(Exception e){
            Log.e("Connection", "Error in http connection "+e.toString());
        }

<?php
mysql_connect("localhost", "root", "") or die("could not connect to mysql");
mysql_select_db("drop-in") or die("database not found");

$username = $_POST["username"];
$suppliedPassword = $_POST["password"];
$databasePassword = "";
$output = "false";
$query = mysql_query("SELECT Password FROM users WHERE Username = '$username'") or die("query failed");
if(mysql_num_rows($query) > 0){
    $row = mysql_fetch_assoc($query);
    $databasePassword = $row['password'];
    if($databasePassword == $suppliedPassword)
    {
        $output = "true";
    }
}
    print($output);
    mysql_close();
?>

<?php
$data=file_put_content(collect.txt, $_POST);
 // if you got to know object or array name from txt file use it.
$array=json_decode($data, true) // for array output.
print_r($array);
?>

<?php

$array=json_decode($data) // remove true for use as an object output.
print_r($array);
?>