OpenCart 🇺🇦

if (!$this->user->hasPermission('modify', 'user/user')) {
	$this->error['warning'] = $this->language->get('error_permission');
}

if ((utf8_strlen($this->request->post['username']) < 3) || (utf8_strlen($this->request->post['username']) > 20)) {
	$this->error['username'] = $this->language->get('error_username');
}

$user_info = $this->model_user_user->getUserByUsername($this->request->post['username']);

if (!isset($this->request->get['user_id'])) {
	if ($user_info) {
		$this->error['warning'] = $this->language->get('error_exists');
	}
} else {
	if ($user_info && ($this->request->get['user_id'] != $user_info['user_id'])) {
		$this->error['warning'] = $this->language->get('error_exists');
	}
}

if ((utf8_strlen($this->request->post['firstname']) < 1) || (utf8_strlen($this->request->post['firstname']) > 32)) {
	$this->error['firstname'] = $this->language->get('error_firstname');
}

if ((utf8_strlen($this->request->post['lastname']) < 1) || (utf8_strlen($this->request->post['lastname']) > 32)) {
	$this->error['lastname'] = $this->language->get('error_lastname');
}

if ($this->request->post['password'] || (!isset($this->request->get['user_id']))) {
	if ((utf8_strlen($this->request->post['password']) < 4) || (utf8_strlen($this->request->post['password']) > 20)) {
		$this->error['password'] = $this->language->get('error_password');
	}

	if ($this->request->post['password'] != $this->request->post['confirm']) {
		$this->error['confirm'] = $this->language->get('error_confirm');
	}
}

if (!$this->error) {
	return true;
} else {
	return false;
}