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server.php
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server.php
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<?php
session_start();
// initializing variables
$first_name = "";
$last_name = "";
$email = "";
$errors = array();
// connect to the database
$db = mysqli_connect('localhost', 'root', '', 'eimvs_db');/* servername, username, password, database_name */
//check connection
if (!$db) {
die("Connection failed: " . mysqli_connect_error());
}
// REGISTER USER
if (isset($_POST['reg_user'])) {
// receive all input values from the form
$first_name = mysqli_real_escape_string($db, $_POST['first_name']);
$last_name = mysqli_real_escape_string($db, $_POST['last_name']);
$email = mysqli_real_escape_string($db, $_POST['email']);
$password_1 = mysqli_real_escape_string($db, $_POST['password_1']);
$password_2 = mysqli_real_escape_string($db, $_POST['password_2']);
// form validation: ensure that the form is correctly filled ...
// by adding (array_push()) corresponding error into $errors array
if (empty($first_name)) { array_push($errors, "First Name is required"); }
if (empty($last_name)) { array_push($errors, "Last Name is required"); }
if (empty($email)) { array_push($errors, "Email is required"); }
if (empty($password_1)) { array_push($errors, "Password is required"); }
if ($password_1 != $password_2) {
array_push($errors, "Passwords do not match");
}
// first check the database to make sure
// a user does not already exist with the same email
$user_check_query = "SELECT * FROM customer WHERE email='$email' LIMIT 1";
$result = mysqli_query($db, $user_check_query);
$user = mysqli_fetch_assoc($result);
if ($user) { // if user exists
if ($user['email'] === $email) {
array_push($errors, "email already exists");
}
}
// Finally, register user if there are no errors in the form
if (count($errors) == 0) {
$password = md5($password_1);//encrypt the password before saving in the database
$query = "INSERT INTO customer (email, first_name, last_name, password)
VALUES('$email', '$first_name', '$last_name', '$password')";
mysqli_query($db, $query);
$_SESSION['first_name'] = $first_name;
$_SESSION['last_name'] = $last_name;
$_SESSION['success'] = "You are now logged in!";
header('location: index.php');
}
}
// LOGIN USER
if (isset($_POST['login_user'])) {
$email = mysqli_real_escape_string($db, $_POST['email']);
$password = mysqli_real_escape_string($db, $_POST['password']);
if (empty($email)) {
array_push($errors, "Email is required");
}
if (empty($password)) {
array_push($errors, "Password is required");
}
if (!count($errors)) {
$password = md5($password);
$query = "SELECT * FROM customer WHERE email='$email' AND password='$password' LIMIT 1";
$result = mysqli_query($db, $query);
$user = mysqli_fetch_assoc($result);
if ($user) {
$_SESSION['first_name'] = $user['first_name'];
$_SESSION['last_name'] = $user['last_name'];
$_SESSION['success'] = "You are now logged in!";
header('location: index.php');
}else {
array_push($errors, "Wrong email/password combination");
}
}
}
?>