['required', 'string', 'max:255', 'unique:users'], 'email' => ['required', 'string', 'email', 'max:255', 'unique:users'], 'password' => ['required', 'string', 'min:8'], ]; } public function messages(): array { return [ 'email.email' => '電子郵件地址格式不正確。', 'password.min' => '密碼至少需要 8 個字符。', 'username.unique' => '此用戶名已被使用。', 'email.unique' => '此電子郵件已被註冊。', ]; } }