Very useful Javascript feature that can prevent a user from losing the data they are entering in an entry field or text editor in case of unintentional leaving of a page.
We will learn two different ways how to download a page in PHP from a web URL, learn how to use cURL and how to set a few additional options and finally show contents on your page.
When you send an email to multiple people, those people can see who else got that email. But if you don't want certain email addresses to be visible to others, this is how you do it in Outlook 2010 in secrecy.
