Phpauth\Auth::changeEmail PHP Method

    public function changeEmail($uid, $email, $password, $captcha = NULL)
    {
        $return['error'] = true;
        $block_status = $this->isBlocked();
        if ($block_status == "verify") {
            if ($this->checkCaptcha($captcha) == false) {
                $return['message'] = $this->lang["user_verify_failed"];
                return $return;
            }
        }
        if ($block_status == "block") {
            $return['message'] = $this->lang["user_blocked"];
            return $return;
        }
        $validateEmail = $this->validateEmail($email);
        if ($validateEmail['error'] == 1) {
            $return['message'] = $validateEmail['message'];
            return $return;
        }
        $validatePassword = $this->validatePassword($password);
        if ($validatePassword['error'] == 1) {
            $return['message'] = $this->lang["password_notvalid"];
            return $return;
        }
        $user = $this->getBaseUser($uid);
        if (!$user) {
            $this->addAttempt();
            $return['message'] = $this->lang["system_error"] . " #14";
            return $return;
        }
        if (!password_verify($password, $user['password'])) {
            $this->addAttempt();
            $return['message'] = $this->lang["password_incorrect"];
            return $return;
        }
        if ($email == $user['email']) {
            $this->addAttempt();
            $return['message'] = $this->lang["newemail_match"];
            return $return;
        }
        $query = $this->dbh->prepare("UPDATE {$this->config->table_users} SET email = ? WHERE id = ?");
        $query->execute(array($email, $uid));
        if ($query->rowCount() == 0) {
            $return['message'] = $this->lang["system_error"] . " #15";
            return $return;
        }
        $return['error'] = false;
        $return['message'] = $this->lang["email_changed"];
        return $return;
    }