Code Files Added

Author: CodingInfinite

.DS_Store

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+-- phpMyAdmin SQL Dump
+-- version 4.7.7
+-- https://www.phpmyadmin.net/
+--
+-- Host: localhost
+-- Generation Time: May 25, 2018 at 12:09 PM
+-- Server version: 10.1.30-MariaDB
+-- PHP Version: 7.2.1
+
+SET SQL_MODE = "NO_AUTO_VALUE_ON_ZERO";
+SET AUTOCOMMIT = 0;
+START TRANSACTION;
+SET time_zone = "+00:00";
+
+
+/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
+/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
+/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
+/*!40101 SET NAMES utf8mb4 */;
+
+--
+-- Database: `PHPLearning`
+--
+
+-- --------------------------------------------------------
+
+--
+-- Table structure for table `users`
+--
+
+CREATE TABLE `users` (
+  `id` int(11) NOT NULL,
+  `username` varchar(255) NOT NULL,
+  `password` varchar(255) NOT NULL,
+  `created` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
+) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+
+--
+-- Dumping data for table `users`
+--
+
+INSERT INTO `users` (`id`, `username`, `password`, `created`) VALUES
+(1, 'shehryar', 'MTIzNDU=', '2018-05-25 06:17:14');
+
+--
+-- Indexes for dumped tables
+--
+
+--
+-- Indexes for table `users`
+--
+ALTER TABLE `users`
+  ADD PRIMARY KEY (`id`);
+
+--
+-- AUTO_INCREMENT for dumped tables
+--
+
+--
+-- AUTO_INCREMENT for table `users`
+--
+ALTER TABLE `users`
+  MODIFY `id` int(11) NOT NULL AUTO_INCREMENT, AUTO_INCREMENT=2;
+COMMIT;
+
+/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
+/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
+/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;

PHPLearning.sql

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+<?php
+// include database and object files
+include_once '../config/database.php';
+include_once '../objects/user.php';
+ 
+// get database connection
+$database = new Database();
+$db = $database->getConnection();
+ 
+// prepare user object
+$user = new User($db);
+// set ID property of user to be edited
+$user->username = isset($_GET['username']) ? $_GET['username'] : die();
+$user->password = base64_encode(isset($_GET['password']) ? $_GET['password'] : die());
+// read the details of user to be edited
+$stmt = $user->login();
+if($stmt->rowCount() > 0){
+    // get retrieved row
+    $row = $stmt->fetch(PDO::FETCH_ASSOC);
+    // create array
+    $user_arr=array(
+        "status" => true,
+        "message" => "Successfully Login!",
+        "id" => $row['id'],
+        "username" => $row['username']
+    );
+}
+else{
+    $user_arr=array(
+        "status" => false,
+        "message" => "Invalid Username or Password!",
+    );
+}
+// make it json format
+print_r(json_encode($user_arr));
+?>

api/User/login.php

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+<?php
+ 
+// get database connection
+include_once '../config/database.php';
+ 
+// instantiate user object
+include_once '../objects/user.php';
+ 
+$database = new Database();
+$db = $database->getConnection();
+ 
+$user = new User($db);
+ 
+// set user property values
+$user->username = $_POST['username'];
+$user->password = base64_encode($_POST['password']);
+$user->created = date('Y-m-d H:i:s');
+ 
+// create the user
+if($user->signup()){
+    $user_arr=array(
+        "status" => true,
+        "message" => "Successfully Signup!",
+        "id" => $user->id,
+        "username" => $user->username
+    );
+}
+else{
+    $user_arr=array(
+        "status" => false,
+        "message" => "Username already exists!"
+    );
+}
+print_r(json_encode($user_arr));
+?>

api/User/signup.php

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+<?php
+class Database{
+ 
+    // specify your own database credentials
+    private $host = "localhost";
+    private $db_name = "PHPLearning";
+    private $username = "root";
+    private $password = "";
+    public $conn;
+ 
+    // get the database connection
+    public function getConnection(){
+ 
+        $this->conn = null;
+ 
+        try{
+            $this->conn = new PDO("mysql:host=" . $this->host . ";dbname=" . $this->db_name, $this->username, $this->password);
+            $this->conn->exec("set names utf8");
+        }catch(PDOException $exception){
+            echo "Connection error: " . $exception->getMessage();
+        }
+ 
+        return $this->conn;
+    }
+}
+?>

api/config/database.php

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+<?php
+class User{
+ 
+    // database connection and table name
+    private $conn;
+    private $table_name = "users";
+ 
+    // object properties
+    public $id;
+    public $username;
+    public $password;
+    public $created;
+ 
+    // constructor with $db as database connection
+    public function __construct($db){
+        $this->conn = $db;
+    }
+    // signup user
+    function signup(){
+    
+        if($this->isAlreadyExist()){
+            return false;
+        }
+        // query to insert record
+        $query = "INSERT INTO
+                    " . $this->table_name . "
+                SET
+                    username=:username, password=:password, created=:created";
+    
+        // prepare query
+        $stmt = $this->conn->prepare($query);
+    
+        // sanitize
+        $this->username=htmlspecialchars(strip_tags($this->username));
+        $this->password=htmlspecialchars(strip_tags($this->password));
+        $this->created=htmlspecialchars(strip_tags($this->created));
+    
+        // bind values
+        $stmt->bindParam(":username", $this->username);
+        $stmt->bindParam(":password", $this->password);
+        $stmt->bindParam(":created", $this->created);
+    
+        // execute query
+        if($stmt->execute()){
+            $this->id = $this->conn->lastInsertId();
+            return true;
+        }
+    
+        return false;
+        
+    }
+    // login user
+    function login(){
+        // select all query
+        $query = "SELECT
+                    `id`, `username`, `password`, `created`
+                FROM
+                    " . $this->table_name . " 
+                WHERE
+                    username='".$this->username."' AND password='".$this->password."'";
+        // prepare query statement
+        $stmt = $this->conn->prepare($query);
+        // execute query
+        $stmt->execute();
+        return $stmt;
+    }
+    function isAlreadyExist(){
+        $query = "SELECT *
+            FROM
+                " . $this->table_name . " 
+            WHERE
+                username='".$this->username."'";
+        // prepare query statement
+        $stmt = $this->conn->prepare($query);
+        // execute query
+        $stmt->execute();
+        if($stmt->rowCount() > 0){
+            return true;
+        }
+        else{
+            return false;
+        }
+    }
+}