public function signUp()
{
//判断参数是否合法
$email = $_POST['em'];
$passwd = $_POST['pass'];
$email = filter_var($email, FILTER_SANITIZE_EMAIL);
$regex = '/[^A-Za-z0-9]/';
if (!filter_var($email, FILTER_VALIDATE_EMAIL) || preg_match($regex, $passwd) || strlen($passwd) < 6) {
$result['errNum'] = '0006';
$result['errMsg'] = errorcode::$error[$result['errNum']];
$this->renderJson($result);
}
//写入mysql，并分配一个自增的uid
$passwd = md5($passwd);
$userModel = new userModel();
$ret = $userModel->insert($email, $passwd);
if (!$ret) {
$result['errNum'] = '0002';
$result['errMsg'] = errorcode::$error[$result['errNum']];
$this->renderJson($result);
}
$result['errNum'] = '0000';
$result['errMsg'] = errorcode::$error[$result['errNum']];
$this->renderJson($result);
}