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register_db.php
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register_db.php
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<?php
session_start();
include('server.php');
$errors = array();
if (isset($_POST['reg_user'])) {
$username = mysqli_real_escape_string($conn, $_POST['username']);
$email = mysqli_real_escape_string($conn, $_POST['email']);
$password_1 = mysqli_real_escape_string($conn, $_POST['password_1']);
$password_2 = mysqli_real_escape_string($conn, $_POST['password_2']);
if (empty($username)) {
array_push($errors, "Username is required");
$_SESSION['error'] = "Username is required";
}
if (empty($email)) {
array_push($errors, "Email is required");
$_SESSION['error'] = "Email is required";
}
if (empty($password_1)) {
array_push($errors, "Password is required");
$_SESSION['error'] = "Password is required";
}
if ($password_1 != $password_2) {
array_push($errors, "The two passwords do not match");
$_SESSION['error'] = "The two passwords do not match";
}
$user_check_query = "SELECT * FROM user WHERE username = '$username' OR email = '$email' LIMIT 1";
$query = mysqli_query($conn, $user_check_query);
$result = mysqli_fetch_assoc($query);
if ($result) { // if user exists
if ($result['username'] === $username) {
array_push($errors, "Username already exists");
}
if ($result['email'] === $email) {
array_push($errors, "Email already exists");
}
}
if (count($errors) == 0) {
$password = md5($password_1);
$sql = "INSERT INTO user (username, email, password) VALUES ('$username', '$email', '$password')";
mysqli_query($conn, $sql);
$_SESSION['username'] = $username;
$_SESSION['success'] = "You are now logged in";
header('location: index.php');
} else {
header("location: register.php");
}
}
?>