Register form

<?php


// if user is logged in redirect him to index page
if ($general->is_logged() === true) {
    header('Location: index.php');
    exit();
}

// get list of countries
$country = $teams->get_country();

require_once 'core/classes/recaptchalib.php';
$publickey = "****************************************";
$privatekey = "*****************************************";

// process form
if (isset($_POST['register']))
{
    if (isset($_POST['username']) &&
        isset($_POST['nickname']) &&
        isset($_POST['password']) &&
        isset($_POST['repeat_password']) &&
        isset($_POST['email']) &&
        isset($_POST['repeat_email']) &&
        isset($_POST['gender']) &&
        isset($_POST['country']) &&
        isset($_POST['recaptcha_challenge_field']) &&
        isset($_POST['recaptcha_challenge_field']))
    {
        $username   = trim($general->safe_input($_POST['username']));
        $nickname   = trim($general->safe_input($_POST['nickname']));
        $password   = trim($general->safe_input($_POST['password']));
        $rpassword  = trim($general->safe_input($_POST['repeat_password']));
        $email      = trim($general->safe_input($_POST['email']));
        $remail     = trim($general->safe_input($_POST['repeat_email']));
        $gender     = trim($general->safe_input($_POST['gender']));
        $cntry      = $general->safe_input($_POST['country']);
        $date_registered = time();
        $password_hash = $general->safepass($password);
        // captcha
        $resp = recaptcha_check_answer ($privatekey, $_SERVER["REMOTE_ADDR"], $_POST["recaptcha_challenge_field"], $_POST["recaptcha_response_field"]);

        // if username is empty
        if (empty($username)) {
            $error[] = 'Username is empty.';

        // if username already exists
        } elseif ($users->user_exists($username) === true) {
            $error[] = 'Username in use, please choose another.';

        // username must be between 3 and 20 characters long
        } elseif (strlen($username) < 3 || strlen($username) > 20) {
            $error[] = 'Username must be between 3 and 20 charaters long.';
        }

        // if nickname is empty
        if (empty($nickname)) {
            $error[] = 'Nickname is empty.';

        // if nickname in use
        } elseif ($users->nick_exists($nickname) === true) {
            $error[] = 'Nickname in use, please choose another.';

        // nickname must be between 3 and 20 characters long
        } elseif (strlen($nickname) < 3 || strlen($nickname) > 20) {
            $error[] = 'Nickname must be between 3 and 20 characters long.';
        }

        // if passowrd field is empty
        if (empty($password)) {
            $error[] = 'Password filed is empty.';
        }

        // if password repeat field is empty
        if (empty($rpassword)) {
            $error[] = 'Repeat password filed is empty';
        }

        // if password and repeat password is not empty
        if (!empty($password) && !empty($rpassword)) {

            // passwords match ? if not throw error message
            if ($password != $rpassword) {
                $error[] = 'Passwords don\'t match.';

            // password must be between 6 and 30 characters long
            } elseif (strlen($password) < 6 || strlen($password) > 30) {
                $error[] = 'Password must be between 6 and 30 characters long.';
            }
        }

        // is email empty
        if (empty($email)) {
            $error[] = 'Email filed is empty.';
        }

        // is repeat email is empty
        if (empty($remail)) {
            $error[] = 'Repeat email filed is empty.';
        }

        // if email and repeat email is not empty
        if (!empty($email) && !empty($remail)) {

            // if emails are not same
            if ($email != $remail) {
                $error[] = 'Emails don\'t match.';

            // if email and repeat email is same
            } elseif ($email == $remail) {

                // is email valid
                if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
                    $error[] = 'Invalid email format.';

                // is email in use
                } elseif ($users->email_exists($email) === true) {
                    $error[] = 'Email in use, please choose another.';

                // email must be between 10 and 30 characters long
                } elseif (strlen($email) < 10 || strlen($email) > 30) {
                    $error[] = 'Email must be between 10 and 30 characters long.';
                }
            }
        }

        // if gender is empty
        if (empty($gender)) {
            $error[] = 'Please select gender.';
        }

        // if country is empty
        if (empty($cntry)) {
            $error[] = 'Please select country.';
        }

        // check if capthha is valid
        if (!$resp->is_valid) {
            $error[] = 'Invalid captcha code.';
        }

        // if no errors register user
        if (empty($error) === true) {
            unset($_POST); // clean $_post variable
            echo 'REGISTER USER !';
        }



        $add_user = $users->register_user($username, $password_hash, $email, $gender, $date_registered, $cntry, $nickname);

        /*          if ($DBH->lastInsertId())
                    {
                        header('Location: index.php?page=register_success');
                        exit();
                    }
                    else
                    {
                        $error = '<p class="error-msg">There was a problem, please try again.</p>';
                    }*/

    }
}

?>

 <script type="text/javascript">
 var RecaptchaOptions = {
    theme : 'clean'
 };
 </script>

<h3>Register</h3>

<?php
if (!empty($error)) {
    echo '<div style="padding:10px;margin:0 10px;border:1px solid #f3f3f3;background:#E35454;color:#fff;"><ul style="margin:0 0 0 20px;">';
    foreach ($error as $error) {
        echo '<li>'.$error. '</li>';
    }
    echo '</ul></div>';
}
?>

<form action="" method="POST" class="register-form">
    <input type="text" name="username" size="40" maxlength="20" placeholder="Username" value="<?php if (isset($_POST['username'])) { echo htmlentities($_POST['username'], ENT_QUOTES, "UTF-8"); } ?>" required>&nbsp;&nbsp;&nbsp;
    <input type="text" name="nickname" size="40" maxlength="20" placeholder="Nickname" value="<?php if (isset($_POST['nickname'])) { echo htmlentities($_POST['nickname'], ENT_QUOTES, "UTF-8"); } ?>" required><br /><br />
    <input type="password" name="password" size="40" maxlength="30" placeholder="Password" required>&nbsp;&nbsp;&nbsp;
    <input type="password" name="repeat_password" size="40" maxlength="30" placeholder="Repeat password" required><br /><br />
    <input type="text" name="email" size="40" maxlength="30" placeholder="Email" value="<?php if (isset($_POST['email'])) { echo htmlentities($_POST['email'], ENT_QUOTES, "UTF-8"); } ?>" required>&nbsp;&nbsp;&nbsp;
    <input type="text" name="repeat_email" size="40" maxlength="30" placeholder="Repeat email" value="<?php if (isset($_POST['repeat_email'])) { echo htmlentities($_POST['repeat_email'], ENT_QUOTES, "UTF-8"); } ?>" required><br /><br />
    <select name="gender" required>
        <option value="">Select gender</option>
        <option value="Male">Male</option>
        <option value="Female">Female</option>
    </select>&nbsp;&nbsp;&nbsp;
    <select name="country" style="width: 215px;" required>
        <option value="">Select county</option>
            <?php
                foreach ($country as $key)
                {
                    echo '<option value="'.$key['name'].','.$key['alpha_2'].'">'.$key['name'].'</option>';
                }
            ?>
    </select>
    <br><br>
    <center><?php echo recaptcha_get_html($publickey); ?></center>
    <br>
    <center><input type="submit" name="register" value="Register" class="small-button"></center>
</form>