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registration.php
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<?php
session_start();
function register($login, $email, $pass) {
if ($login=='' || $email=='' || $pass==''){
echo "<br>Введены некоректные значения<br>";
return false;
}
if ((strlen($pass) < 5) || (strlen($pass) > 15) || !preg_match("#^[aA-zZ0-9]+$#", $pass)){
echo "<br>Некорректный пароль<br>";
return false;
}
$servername = "localhost";
$username = "root";
$password = "root";
$dbname = "isis";
$conn = new mysqli($servername, $username, $password, $dbname);
if ($conn->connect_error)
{
die("Connection failed: " .$conn->connect_error);
}
$findUser = "SELECT * FROM users WHERE username='$login'";
$result = $conn->query($findUser);
$user = mysqli_fetch_assoc($result);
if($result->num_rows == 0) {
$addUser = "INSERT INTO users (users.username, users.email, users.password)
VALUES ('$login','$email', '$pass')";
if ($conn->query($addUser)){
$_SESSION['userid']=$user['id'];
$_SESSION['username']=$login;
if($user[isadmin]==1) {
$_SESSION['admin']=true;
}
echo "We have new user!<br>";
echo "Hello, $login!<br>";
}
} else {
echo "Пользователь с таким именем уже существует!";
return false;
}
$conn->close();
return true;
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Регистрация</title>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/5.0.0-alpha2/css/bootstrap.min.css" integrity="sha384-DhY6onE6f3zzKbjUPRc2hOzGAdEf4/Dz+WJwBvEYL/lkkIsI3ihufq9hk9K4lVoK" crossorigin="anonymous">
<link rel="shortcut icon" href="books/book-logo-1.png" type="image/x-icon">
<link rel="stylesheet" href="style.css">
</head>
<body>
<h4>Регистрация</h4>
<?php
if(isset($_COOKIE[username])){
echo "<h4>Welcome, $_COOKIE[username]!</h4>";
if($_COOKIE[admin]) echo "<h4>You're an admin!</h4>";
} else if(isset($_SESSION[username])){
echo "<h4>Welcome, $_SESSION[username]!</h4>";
if($_SESSION[admin]) echo "<h4>You're an admin!</h4>";
} else echo "<h4>Welcome, guest!</h4>";
?>
<br>
<form action="registration.php" method="post">
<label>Логин: <input type="text" name="username"></label>
<label>eMail: <input type="email" name="email"></label>
<label>Пароль: <input type="password" name="password"></label>
<label><input type="submit" value="Зарегистрироваться"></label>
</form>
<?php
if(isset($_POST['username'])) register($_POST[username],$_POST[email],$_POST[password]);
?>
<br>
<h4>Уже зарегистрированы?</h4>
<br>
<a href='/login.php' class='btn btn-lg btn-primary'>Войти</a>
<br>
<br>
<a href='/' class='btn btn-lg btn-primary'>На главную</a>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/5.0.0-alpha2/js/bootstrap.bundle.min.js" integrity="sha384-BOsAfwzjNJHrJ8cZidOg56tcQWfp6y72vEJ8xQ9w6Quywb24iOsW913URv1IS4GD" crossorigin="anonymous"></script>
</body>
</html>