Untitled

<?php
include("db_connect.php");
$login = '';
$password = '';
$errorLogin = '';
$errorPassword = '';
$password_2 = '';
$errorSamePassword = '';
$registered = '';
$loginNotFree = '';
$reminderKey = '';
$reminderKey_2 = '';
$reminderKeyText = '';
$errorReminderKey = '';

if ( isset( $_POST['register'] ) ) {
	$login = $_POST['login'];
    $password = $_POST['password'];
    $password_2 = $_POST['password_2'];
    $reminderKey = $_POST['reminderKey'];
    $reminderKey_2 = $_POST['reminderKey_2'];
    $reminderKeyText = $_POST['reminderKeyText'];

	if ( $login && strlen($login) < 4 ) {
        $errorLogin = 'Login musi zawierać minimum 4 znaki';
    }

    if ( $password && strlen($password) < 6 ) {
		$errorPassword = 'Hasło musi zawierać minimum 6 znaków';
    }

    if ( $password != $password_2 ) {
        $errorSamePassword = 'Hasło musi być takie samo';
    }


    if ( $reminderKey != $reminderKey_2 ) {
        $errorReminderKey = 'Odpowiedź musi być taka sama';
    }

    $result = mysqli_query($mysqli,"SELECT * FROM users WHERE login = '$login'");
    $countUsers = mysqli_num_rows($result);
    if($countUsers>0){
       $loginNotFree = 'Login jest już zajęty';
    }

    if(! $errorLogin && ! $errorPassword && ! $errorSamePassword && !$loginNotFree && ! $errorReminderKey)
    {
        $registered = 1;
    }


}
?>

    <!DOCTYPE html>
    <html>

    <head>
        <meta charset="utf-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <title>Literature Community</title>
        <link rel="stylesheet" href="../bootstrap/css/bootstrap.min.css">
        <link rel="stylesheet" href="../fontawesome-free-5.0.13/web-fonts-with-css/css/fontawesome-all.css">
        <link rel="stylesheet" href="../css/styles.css">
        <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/animate.css/3.5.2/animate.min.css">
    </head>

    <body>
        <div>
            <?php include("db_connect.php"); ?>
            <form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>" class="text-center">
                <div class="container">
                    <div class="row">
                        <div class="col-md-12">
                            <?php if ( $registered == 1 ) {
                                    $statement = $mysqli->prepare("INSERT users (login,password,reminderKey,reminderKeyText) VALUES (?,?,?,?)");
                                    $statement->bind_param("ssss",$login,$password,$reminderKey,$reminderKeyText);
                                    $statement->execute();
                                    $statement->close(); ?>
                            <div class="ui message">
                                <div class="header">Rejestracja przebiegła pomyślnie!</div>
                                <p>Za chwilę zostaniesz przekierowany na stronę główną</p>
                            </div>
                            <?php  header( "refresh:5;url=../../index.php" ); } ?>

                            <img src="../img/default-avatar.png" alt="Avatar" class="login-avatar">
                        </div>

                        <div class="col-md-4 col-md-offset-2">
                            <label for="login"><b>Login</b></label>
                            <?php if ( $errorLogin != null) { ?>
                            <span style="color:black;" class="ui red label">
                                                <?php echo $errorLogin; ?>
                                            </span>
                            <?php } ?>
                            <?php if ( $loginNotFree != null) { ?>
                            <span style="color:black;" class="ui red label">
                                                <?php echo $loginNotFree; ?>
                                            </span>
                            <?php } ?>
                            <input class="form-control" type="text" placeholder="Wpisz login" name="login" required>

                            <label for="password"><b>Hasło</b></label>
                            <?php if ( $errorPassword != null ) { ?>
                            <span style="color:black;" class="ui red label">
                                                <?php echo $errorPassword; ?>
                                            </span>
                            <?php } ?>
                            <input class="form-control" type="password" placeholder="Wpisz hasło" name="password" required>

                            <label for="password"><b>Powtórz hasło</b></label>
                            <?php if ( $errorSamePassword != null ) { ?>
                            <span style="color:black;" class="ui red label">
                                                <?php echo $errorSamePassword; ?>
                                            </span>
                            <?php } ?>
                            <input class="form-control" type="password" placeholder="Powtórz hasło" name="password_2" required>
                        </div>

                        <div class="col-md-4">
                            <label for="reminderKeyText"><b>Pomocnicze pytanie</b></label>
                            <input class="form-control" type="text" placeholder="Wpisz pomocnicze pytanie" name="reminderKeyText" required>

                            <label for="reminderKey"><b>Odpowiedź na pomocnicze pytanie</b></label>
                            <input class="form-control" type="text" placeholder="Wpisz odpowiedź na pomocnicze pytanie" name="reminderKey" required>

                            <label for="reminderKey_2"><b>Powtórz odpowiedź na pomocnicze pytanie</b></label>
                            <?php if ( $errorReminderKey != null) { ?>
                            <span style="color:black;" class="ui red label">
                                                <?php echo $errorReminderKey; ?>
                                            </span>
                            <?php } ?>
                            <input class="form-control" type="text" placeholder="Powtórz odpowiedź na pomocnicze pytanie" name="reminderKey_2" required>
                            </br>
                        </div>
                        <div class="col-md-2"></div>
                    </div>

                    <button class="btn btn-info" type="submit" name="register">Zarejestruj</button>
                </div>
            </form>
        </div>

        <script src="../js/jquery.min.js "></script>
        <script src="../bootstrap/js/bootstrap.min.js "></script>


    </body>

    </html>