Store data without a database?

Question

If I would like to store emails, but don't have a database (e.g. MySQL), what should I do?

The data should be accessible and writable from PHP, but regular "visitors" MUST NOT see the data.

Hope you can help.

Answer 1

You can put them in files :)

$data; // Defined "somewhere"
file_put_contents('filename.txt', $data);

However, I suggest you to use a database anyway. At least SQLite is installed nearly everywere.

Answer 2

If your data not very large, you can use XML files. But if your data is important and you must secure it , you have to encrypt your data