データベースとユーザー用に別のクラスを作成しました。
データベース.php
class Database{
private $db;
public function __construct(){
/*** mysql hostname ***/
$hostname = 'localhost';
/*** mysql username ***/
$username = 'username_web';
/*** mysql password ***/
$password = 'password_web';
try {
$this->db = new PDO("mysql:host=$hostname;dbname=kamadhenu_web", $username, $password);
/*** echo a message saying we have connected ***/
}
catch(PDOException $e)
{
echo $e->getMessage();
}
}
/*** Query Function ***/
public function query($sql)
{
return $this->db->query($sql);
}
}
ユーザー.php
class Users{
private $db;
public function __construct($database) {
$this->db = $database;
}
public function login($username, $password)
{
$query=$this->db->prepare("SELECT `password`, `id` FROM `users` WHERE `username` = ?");
$query->bindValue(1, $username);
try{
$query->execute();
$data = $query->fetch();
$stored_password = $data['password'];
$id = $data['id'];
#hashing the supplied password and comparing it with the stored hashed password.
if($stored_password === sha1($password)){
return $id;
}else{
return false;
}
}catch(PDOException $e){
die($e->getMessage());
}
}
}
これが、ユーザー名とパスワードを使用したログインページです。
login.php
include('database.php');
include('users.php');
$dbh= new Database();
$users= new Users($dbh);
if (isset($_POST['submit']))
{
$username= $_POST['username'];
$password= $_POST['password'];
$login = $users->login($username, $password);
if ($login === false) {
$errors[] = 'Sorry, that username/password is invalid';
}
else {
// username/password is correct and the login method of the $users object returns the user's id, which is stored in $login.
$_SESSION['id'] = $login; // The user's id is now set into the user's session in the form of $_SESSION['id']
#Redirect the user to home.php.
header('Location: list-updates.php');
exit();
}
}
実行するとエラーが発生します：
未定義のメソッド Database::prepare() の呼び出し