Создаем невероятную простую систему регистрации на PHP и MySQL. Создаем невероятную простую систему регистрации на PHP и MySQL Безрассудный users registration php
Much of the websites have a registration form for your users to sign up and thus may benefit from some kind of privilege within the site. In this article we will see how to create a registration form in PHP and MySQL.
We will use simple tags and also we will use table tag to design the Sign-Up.html webpage. Let’s start:
Listing 1 : sign-up.html
Figure 1:
Description of sing-in.html webpage:
As you can see the Figure 1, there is a Registration form and it is asking few data about user. These are the common data which ask by any website from his users or visitors to create and ID and Password. We used table tag because to show the form fields on the webpage in a arrange form as you can see them on Figure 1. It’s looking so simple because we yet didn’t used CSS Style on it now let’s we use CSS styles and link the CSS style file with sing-up.html webpage.
Listing 2 : style.css
/*CSS File For Sign-Up webpage*/ #body-color{ background-color:#6699CC; } #Sign-Up{ background-image:url("sign-up.png"); background-size:500px 500px; background-repeat:no-repeat; background-attachment:fixed; background-position:center; margin-top:150px; margin-bottom:150px; margin-right:150px; margin-left:450px; padding:9px 35px; } #button{ border-radius:10px; width:100px; height:40px; background:#FF00FF; font-weight:bold; font-size:20px; }
Listing 3 : Link style.css with sign-up.html webpage
Figure 2:
Description of style.css file:
In the external CSS file we used some styles which could be look new for you. As we used an image in the background and set it in the center of the webpage. Which is become easy to use by the help of html div tag. As we used three div tag id’s. #button, #sing-up, and #body-color and we applied all CSS styles on them and now you can see the Figure 2, how much it’s looking beautiful and attractive. You can use many other CSS styles as like 2D and 3D CSS styles on it. It will look more beautiful than its looking now.
After these all simple works we are now going to create a database and a table to store all data in the database of new users. Before we go to create a table we should know that what we require from the user. As we designed the form we will create the table according to the registration form which you can see it on Figure 1 & 2.
Listing 3 : Query for table in MySQL
CREATE TABLE WebsiteUsers (userID int(9) NOT NULL auto_increment, fullname VARCHAR(50) NOT NULL, userName VARCHAR(40) NOT NULL, email VARCHAR(40) NOT NULL, pass VARCHAR(40) NOT NULL, PRIMARY KEY(userID));
Description of Listing 3:
One thing you should know that if you don’t have MySQL facility to use this query, so should follow my previous article about . from this link you will able to understand the installation and requirements. And how we can use it.
In the listing 3 query we used all those things which we need for the registration form. As there is Email, Full name, password, and user name variables. These variable will store data of the user, which he/she will input in the registration form in Figure 2 for the sing-up.
After these all works we are going to work with PHP programming which is a server side programming language. That’s why need to create a connection with the database.
Listing 4 : Database connection
Description of Listing 4:
We created a connection between the database and our webpages. But if you don’t know is it working or not so you use one thing more in the last check listing 5 for it.
Listing 5 : checking the connection of database connectivity
Description Listing 5:
In the Listing 5 I just tried to show you that you can check and confirm the connection between the database and PHP. And one thing more we will not use Listing 5 code in our sing-up webpage. Because it’s just to make you understand how you can check the MySQL connection.
Now we will write a PHP programming application to first check the availability of user and then store the user if he/she is a new user on the webpage.
Listing 6 : connectivity-sign-up.php
Description of connectivity-sign-up.php
In this PHP application I used simplest way to create a sign up application for the webpages. As you can see first we create a connection like listing 4. And then we used two functions the first function is SignUP() which is being called by the if statement from the last of the application, where its first confirming the pressing of sign up button. If it is pressed then it will call the SingUp function and this function will use a query of SELECT to fetch the data and compare them with userName and email which is currently entered from the user. If the userName and email is already present in the database so it will say sorry you are already registered
If the user is new as its currently userName and email ID is not present in the database so the If statement will call the NewUser() where it will store the all information of the new user. And the user will become a part of the webpage.
Figure 3
In the figure 3, user is entering data to sign up if the user is an old user of this webpage according to the database records. So the webpage will show a message the user is registered already if the user is new so the webpage will show a message the user’s registration is completed.
Figure 4:
As we entered data to the registration form (Figure 4), according to the database which userName and email we entered to the registration form for sing-up it’s already present in the database. So we should try a new userName and email address to sign-up with a new ID and Password.
Figure 5
In figure 5, it is confirming us that which userName and email id user has entered. Both are not present in the database records. So now a new ID and Password is created and the user is able to use his new ID and Password to get login next time.
Conclusion:
In this article we learnt the simplest way of creating a sign up webpage. We also learnt that how it deals with the database if we use PHP and MySQL. I tried to give you a basic knowledge about sign up webpage functionality. How it works at back end, and how we can change its look on front end. For any query don’t hesitate and comment.
Процесс создания системы регистрации – это довольно большой объем работы. Вам нужно написать код, который бы перепроверял валидность email-адресов, высылал email-письма с подтверждением, предлагал возможность восстановить пароль, хранил бы пароли в безопасном месте, проверял формы ввода и многое другое. Даже когда вы все это сделаете, пользователи будут регистрироваться неохотно, так как даже самая минимальная регистрация требует их активности.
В сегодняшнем руководстве мы займемся разработкой простой системы регистрации, с использованием которой вам не понадобятся никакие пароли! В результаты мы получим, систему, которую можно будет без труда изменить или встроить в существующий PHP-сайт. Если вам интересно, продолжайте чтение.
PHP
Теперь мы готовы к тому, чтобы заняться кодом PHP. Основной функционал системы регистрации предоставляется классом User, который вы можете видеть ниже. Класс использует (), представляющую собой минималистскую библиотеку для работы с базами данных. Класс User отвечает за доступ к базам данных, генерирование token-ов для логина и их валидации. Он представляет нам простой интерфейс, который можно без труда включить в систему регистрации на ваших сайтах, основанных на PHP.
User.class.php
// Private ORM instance
private $orm;
/**
* Find a user by a token string. Only valid tokens are taken into
* consideration. A token is valid for 10 minutes after it has been generated.
* @param string $token The token to search for
* @return User
*/
Public static function findByToken($token){
// find it in the database and make sure the timestamp is correct
->where("token", $token)
->where_raw("token_validity > NOW()")
->find_one();
If(!$result){
return false;
}
Return new User($result);
}
/**
* Either login or register a user.
* @return User
*/
Public static function loginOrRegister($email){
// If such a user already exists, return it
If(User::exists($email)){
return new User($email);
}
// Otherwise, create it and return it
Return User::create($email);
}
/**
* Create a new user and save it to the database
* @param string $email The user"s email address
* @return User
*/
Private static function create($email){
// Write a new user to the database and return it
$result = ORM::for_table("reg_users")->create();
$result->email = $email;
$result->save();
Return new User($result);
}
/**
* Check whether such a user exists in the database and return a boolean.
* @param string $email The user"s email address
* @return boolean
*/
Public static function exists($email){
// Does the user exist in the database?
$result = ORM::for_table("reg_users")
->where("email", $email)
->count();
Return $result == 1;
}
/**
* Create a new user object
* @param $param ORM instance, id, email or null
* @return User
*/
Public function __construct($param = null){
If($param instanceof ORM){
// An ORM instance was passed
$this->orm = $param;
}
else if(is_string($param)){
// An email was passed
$this->
->where("email", $param)
->find_one();
}
else{
If(is_numeric($param)){
// A user id was passed as a parameter
$id = $param;
}
else if(isset($_SESSION["loginid"])){
// No user ID was passed, look into the sesion
$id = $_SESSION["loginid"];
}
$this->orm = ORM::for_table("reg_users")
->where("id", $id)
->find_one();
}
/**
* Generates a new SHA1 login token, writes it to the database and returns it.
* @return string
*/
Public function generateToken(){
// generate a token for the logged in user. Save it to the database.
$token = sha1($this->email.time().rand(0, 1000000));
// Save the token to the database,
// and mark it as valid for the next 10 minutes only
$this->orm->set("token", $token);
$this->orm->set_expr("token_validity", "ADDTIME(NOW(),"0:10")");
$this->orm->save();
Return $token;
}
/**
* Login this user
* @return void
*/
Public function login(){
// Mark the user as logged in
$_SESSION["loginid"] = $this->orm->id;
// Update the last_login db field
$this->orm->set_expr("last_login", "NOW()");
$this->orm->save();
}
/**
* Destroy the session and logout the user.
* @return void
*/
Public function logout(){
$_SESSION = array();
unset($_SESSION);
}
/**
* Check whether the user is logged in.
* @return boolean
*/
Public function loggedIn(){
return isset($this->orm->id) && $_SESSION["loginid"] == $this->orm->id;
}
/**
* Check whether the user is an administrator
* @return boolean
*/
Public function isAdmin(){
return $this->rank() == "administrator";
}
/**
* Find the type of user. It can be either admin or regular.
* @return string
*/
Public function rank(){
if($this->orm->rank == 1){
return "administrator";
}
Return "regular";
}
/**
* Magic method for accessing the elements of the private
* $orm instance as properties of the user object
* @param string $key The accessed property"s name
* @return mixed
*/
Public function __get($key){
if(isset($this->orm->$key)){
return $this->orm->$key;
}
Return null;
}
}
Token-ы генерируются при помощи алгоритма , и сохраняются в базу данных. Мы используем из MySQL для установки значения в колонку token_validity, равного 10 минутам. При валидации token, мы сообщаем движку, что нам нужен token, поле token_validity пока еще не истекло. Таким образом мы ограничиваем время, в течение которого token будет валиден.
Обратите внимание на то, что мы используем волшебный метод __get () в конце документа, чтобы получить доступ к свойствам объекта user. Это позволяет нам осуществить доступ к данным, которые хранятся в базе данных в виде свойств: $user->email, $user->token. Для примера давайте посмотрим, как мы можем использовать этот класс в следующем фрагменте кода:
Еще один файл, в котором хранится необходимый функционал, это functions.php. Там у нас есть несколько вспомогательных функций, которые позволяют нам сохранить остальной код более опрятным.
Functions.php
Function send_email($from, $to, $subject, $message){
// Helper function for sending email
$headers = "MIME-Version: 1.0" . "\r\n";
$headers .= "Content-type: text/plain; charset=utf-8" . "\r\n";
$headers .= "From: ".$from . "\r\n";
Return mail($to, $subject, $message, $headers);
}
function get_page_url(){
// Find out the URL of a PHP file
$url = "http".(empty($_SERVER["HTTPS"])?"":"s")."://".$_SERVER["SERVER_NAME"];
If(isset($_SERVER["REQUEST_URI"]) && $_SERVER["REQUEST_URI"] != ""){
$url.= $_SERVER["REQUEST_URI"];
}
else{
$url.= $_SERVER["PATH_INFO"];
}
Return $url;
}
function rate_limit($ip, $limit_hour = 20, $limit_10_min = 10){
// The number of login attempts for the last hour by this IP address
$count_hour = ORM::for_table("reg_login_attempt")
->
->where_raw("ts > SUBTIME(NOW(),"1:00")")
->count();
// The number of login attempts for the last 10 minutes by this IP address
$count_10_min = ORM::for_table("reg_login_attempt")
->where("ip", sprintf("%u", ip2long($ip)))
->where_raw("ts > SUBTIME(NOW(),"0:10")")
->count();
If($count_hour > $limit_hour || $count_10_min > $limit_10_min){
throw new Exception("Too many login attempts!");
}
}
function rate_limit_tick($ip, $email){
// Create a new record in the login attempt table
$login_attempt = ORM::for_table("reg_login_attempt")->create();
$login_attempt->email = $email;
$login_attempt->ip = sprintf("%u", ip2long($ip));
$login_attempt->save();
}
function redirect($url){
header("Location: $url");
exit;
}
Функции rate_limit и rate_limit_tick позволяют нам ограничивать число попыток авторизации на определенный промежуток времени. Попытки авторизации записываются в базу данных reg_login_attempt. Эти функции запускаются при проведении подтверждения формы авторизации, как можно видеть в следующем фрагменте кода.
Нижеприведенный код был взят из index.php, и он отвечает за подтверждение формы авторизации. Он возвращает JSON-ответ, который управляется кодом jQuery, который мы видели в assets/js/script.js.
index.php
If(!empty($_POST) && isset($_SERVER["HTTP_X_REQUESTED_WITH"])){
// Output a JSON header
Header("Content-type: application/json");
// Is the email address valid?
If(!isset($_POST["email"]) || !filter_var($_POST["email"], FILTER_VALIDATE_EMAIL)){
throw new Exception("Please enter a valid email.");
}
// This will throw an exception if the person is above
// the allowed login attempt limits (see functions.php for more):
rate_limit($_SERVER["REMOTE_ADDR"]);
// Record this login attempt
rate_limit_tick($_SERVER["REMOTE_ADDR"], $_POST["email"]);
// Send the message to the user
$message = "";
$email = $_POST["email"];
$subject = "Your Login Link";
If(!User::exists($email)){
$subject = "Thank You For Registering!";
$message = "Thank you for registering at our site!\n\n";
}
// Attempt to login or register the person
$user = User::loginOrRegister($_POST["email"]);
$message.= "You can login from this URL:\n";
$message.= get_page_url()."?tkn=".$user->generateToken()."\n\n";
$message.= "The link is going expire automatically after 10 minutes.";
$result = send_email($fromEmail, $_POST["email"], $subject, $message);
If(!$result){
throw new Exception("There was an error sending your email. Please try again.");
}
Die(json_encode(array(
"message" => "Thank you! We\"ve sent a link to your inbox. Check your spam folder as well."
)));
}
}
catch(Exception $e){
Die(json_encode(array(
"error"=>1,
"message" => $e->getMessage()
)));
}
При успешной авторизации или регистрации, вышеприведенный код отсылает email человеку с ссылкой для авторизации. Token (лексема) становится доступной в качестве $_GET-переменной "tkn" ввиду сгенерированного URL.
index.php
If(isset($_GET["tkn"])){
// Is this a valid login token?
$user = User::findByToken($_GET["tkn"]);
// Yes! Login the user and redirect to the protected page.
$user->login();
redirect("protected.php");
}
// Invalid token. Redirect back to the login form.
redirect("index.php");
}
Запуск $user->login() создаст необходимые переменные для сессии, что позволит пользователю оставаться авторизованным при последующих входах.
Выход из системы реализуется примерно таким же образом:
Index.php
If(isset($_GET["logout"])){
$user = new User();
If($user->loggedIn()){
$user->logout();
}
Redirect("index.php");
}
В конце кода мы снова перенаправляем пользователя на index.php, поэтому параметр?logout=1 в URL исключается.
Нашему файлу index.php также потребуется защита – мы не хотим, чтобы уже авторизованные пользователи видели форму. Для этого мы используем метод $user->loggedIn():
Index.php
$user = new User();
if($user->loggedIn()){
redirect("protected.php");
}
Наконец, давайте посмотрим, как можно защитить страницу вашего сайта, и сделать ее доступной только после авторизации:
protected.php
// To protect any php page on your site, include main.php
// and create a new User object. It"s that simple!
require_once "includes/main.php";
$user = new User();
if(!$user->loggedIn()){
redirect("index.php");
}
После этой проверки вы можете быть уверены в том, что пользователь успешно авторизовался. У вас также будет доступ к данным, которые хранятся в базе данных в качестве свойств объекта $user. Чтобы вывести email пользователя и их ранг, воспользуйтесь следующим кодом:
Echo "Your email: ".$user->email;
echo "Your rank: ".$user->rank();
Здесь rank() – это метод, так как колонка rank в базе данных обычно содержит числа (0 для обычных пользователей и 1 для администраторов), и нам нужно преобразовать это все в названия рангов, что реализуется при помощи данного метода. Чтобы преобразовать обычного пользователя в администратора, просто отредактируйте запись о пользователе в phpmyadmin (либо в любой другой программе по работе с базами данных). Будучи администратором, пользователь не будет наделен какими-то особыми возможностями. Вы сами в праве выбирать, каким правами наделять администраторов.
Готово!
На этом наша простенькая система регистрации готова! Вы можете использовать ее на уже существующем PHP-сайте, либо модернизировать ее, придерживаясь собственных требований.
Ladies & Gentleman,
Or should I say "Gentle Ladies" and "Hard Men" (tough guys)!
Here is my very latest (New Code) reg.php. I have modified it by:
- Removing outdated strip tags, mysqli_escape_string.
- Bound input parameters on the user reg form.
- Added htmlspecialcharacters code on output to prevent sql injection.
Look how cluttered my old code was before a lot of programmers here and other sources helped me out (thanks to all!).
Ok, my new code does not have the email confirmation code and a lot of others but I will add them soon. I took them out here to make the new code simple for you to easily understand the code. Kept just the fundamentals on the 1st impression. Will add the remaining necessities on the 2nd impression.
You are welcome to make any suggestions and critisize the coding (but do bother to show an example of an improvement to the area you critisize). Ok ?
Old Code:
connect_error) { die($conn->connect_error); } //Site details. $site_domain = "site-domain.com"; $site_name = "site-name"; $site_admin_email = "[email protected]"; //Perform following action when user registration "Submit button is clicked". if (isset($_POST["submit"])) { //Check if user filled-in "Username", "Password" and "Email" fields or not. If not, give alert to fill them in. if(!empty($_POST["member_registration_username"]) && !empty($_POST["member_registration_password"])&& !empty($_POST["member_registration_email"])) { $member_registration_username = trim(strip_tags(strtolower(mysqli_real_escape_string($conn,$_POST["member_registration_username"])))); $member_registration_password = trim(strip_tags(md5(mysqli_real_escape_string($conn,$_POST["member_registration_password"])))); //Check for Username match in users table. $sql = "SELECT * FROM users WHERE Usernames ="".$member_registration_username."""; $result = mysqli_query($conn,$sql); //If there is a Username match in the "Usernames" column then do the following ... if(mysqli_num_rows($result)!=0) { //Give alert "username" already taken. $_SESSION["message"]="That Username $member_registration_username is already registered!"; exit(); } //Check for Email match in users table. $sql = "SELECT * FROM users WHERE Emails ="".$member_registration_email."""; $result = mysqli_query($conn,$sql); //If there is a Username match in the "Usernames" column then do the following ... if(mysqli_num_rows($result)>0) { //Give alert "email" already taken. $_SESSION["message"]="That Email $member_registration_email is already registered!"; exit(); } //Dump new "Username", "Email" and "Password" into "users" table. $sql = "INSERT INTO users(Usernames,Passwords,Emails) VALUES("".$member_registration_username."","".$member_registration_password."","".$member_registration_email."")"; if($sql) { //Give alert dumping new user details into db a success. $_SESSION["message"]="Data insertion into table success!"; } else { //Give alert dumping new user details into db a failure. $_SESSION["message"]="Data insertion into table failure!"; } } else { //Give alert to fill-in all fields. $_SESSION["message"]="You must fill-in all input fields!"; } } ?>
New Code:
prepare("INSERT INTO tbl_users (name, password) VALUES (?, ?)")) { // Bind the variables to the parameter as strings. $stmt->bind_param("ss", $name, $password); // Execute the statement. $stmt->execute(); // Close the prepared statement. $stmt->close(); } } else { //Give alert to fill-in all fields. echo "You must fill-in all input fields!"; } } ?>
Fellow programmers, looking at my 2nd code, do you think:
- it is better;
- clutter free;
- more understandable;
- sql injection free.
And, on my 2nd code, any chance you can help me convert the INSERT sql command (line 45-55) to mysqli style from pdo ?
I got that pdo code from:
wikihow.com
How to Prevent SQL Injection in PHP
SQL injection is one of the most common vulnerabilities in applications on the web today. This article will show you how to 100% prevent SQL injection on your website using Prepared Statements in PHP. SQL Injection is a type of...
Since most of my code, in my many pages script, is in mysqli or procedural style, it will look odd if 10 lines are pdo or oop style.
Yes, I know I know, I should do it in pdo and oop style but I"m still a beginner and most tutorials on basic php are in mysqli and procedural style and so I cannot just switch to pdo and oop just yet. Let me learn to walk first and then I"ll hop like a Kangaroo. I"m still a toddler. have to take things one step at a time or I"ll get confused and put-off from php.
Question: On my 1st (old code), you will see I don"t use the "echo" but "Session Message" instead as 2 youtube tutorials showed to do it that way without giving any explanation why. Therefore, I ask:
- What is the difference and benefits (pros) aswell as the cons between the echo and the session message ?
- When should I use which one of them ?
session_register
(PHP 4, PHP 5)session_register -- Register one or more global variables with the current session
Description
bool session_register (mixed name [, mixed ...])session_register() accepts a variable number of arguments, any of which can be either a string holding the name of a variable or an array consisting of variable names or other arrays. For each name, session_register() registers the global variable with that name in the current session.
| Caution | If you want your script to work regardless of register_globals , you need to instead use the $_SESSION array as $_SESSION entries are automatically registered. If your script uses session_register() , it will not work in environments where the PHP directive register_globals is disabled. |
register_globals: important note: Since PHP 4.2.0, the default value for the PHP directive register_globals is off , and it is completely removed as of PHP 6.0.0. The PHP community encourages all to not rely on this directive but instead use other means, such as the superglobals .
| Caution | This registers a global variable. If you want to register a session variable from within a function, you need to make sure to make it global using the global keyword or the $GLOBALS array, or use the special session arrays as noted below. |
Note: It is currently impossible to register resource variables in a session. For example, you cannot create a connection to a database and store the connection id as a session variable and expect the connection to still be valid the next time the session is restored. PHP functions that return a resource are identified by having a return type of resource in their function definition. A list of functions that return resources are available in the
Updated on: 2018-03-12
Posted on: 2016-12-21
Over time PHP has been adding features that promote the development of secure applications, as well deprecated or removed features that made it easy to write insecure code.
Read this tutorial to learn how to create a modern login and registration system that takes advantage of PHP security-focused features and uses jQuery to send AJAX requests and Bootstrap to provide a fast and nice user interface that can work regardless if you use other frameworks or not.
If you have questions or comments you can post a message as comment to this article or in its .
Change Log
2017-03-27: Added more download and install information using the composer tool.
2017-01-01: Updated the article to reflect that these continue to be secure practices in 2017
