3.3 Php scripts

In application php scripts are used for processing information with JSON for storing dates in the database. All the scripts are used to connect to database. In Table 7 written detailed description of php scripts. In figure 10 written example of one php script.

Table 7 - Description of php scripts

Name	description
Save.php	Processes data and stores the contacts database
Sav.php	Clears the database from old contacts
Login.php	Checks the data for authorization
Backup.php	Copies the information from the database and sends to the application to save to phone
Register.php	Enters to the database of the new member
DB_connect.php	Creates a database connection
DB_config.php	Database Settings

<?php

$response = array();

// check for required fields

if (isset($_POST['login']) && isset($_POST['password'])) {

$login = $_POST['login'];

$password = $_POST['password'];

// include db connect class

require_once __DIR__ . '/db_connect.php';

// connecting to db

$db = new DB_CONNECT();

$men = mysql_query("SELECT * FROM users where login = '$login'");

if(mysql_num_rows($men) > 0){

$response["success"] = 2;

$response["message"] = "login zanyat.";

// echoing JSON response

echo json_encode($response);

}else{

// mysql inserting a new row

$result = mysql_query("INSERT INTO users(login, password) VALUES('$login', '$password')");

// check if row inserted or not

if ($result) {

// successfully inserted into database

$response["login"] = $login;

$response["success"] = 1;

$response["message"] = "Product successfully created.";

// echoing JSON response

echo json_encode($response);

} else {

// failed to insert row

$response["success"] = 0;

$response["message"] = "Oops! An error occurred.";

// echoing JSON response

echo json_encode($response);

}

}

}

?>

Figure 10 - Register.php

3.4 Xml files

Extensible Markup Language (XML) is a markup language that defines a set of rules for encoding documents in a format that is both human-readable and machine-readable. In diploma project xml used for designing application. XML is view of application for user. In table 8 xml’s used in diploma project. In figure 11 example of xml file.

Table 8 - XML descriptions.

Name	description
activity_main.xml	For designing main page
backup.xml	For designing backup page
call.xml	For designing call page
login.xml	For designing login page
register.xml	For designing register page
simple.xml	For creating list
success.xml	For designing logged in page
styles.xml	Design colors and font

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical"

>

<TextView

android:id="@+id/textView1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="Login"

android:textAppearance="?android:attr/textAppearanceLarge" />

<TextView

android:id="@+id/textView2"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="login" />

<EditText

android:id="@+id/eLogin"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:ems="10" >

<requestFocus />

</EditText>

<TextView

android:id="@+id/textView3"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="password" />

<EditText

android:id="@+id/ePass"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:ems="10"

android:inputType="textPassword" />

<TextView

android:id="@+id/eError"

android:layout_width="wrap_content"

android:layout_height="wrap_content" />

<Button

android:id="@+id/bLogin"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="Login" />

</LinearLayout>

Figure 11 - Login.XML