Question

I am developing a chat application in php and i want to sell this over internet. How I can I make it licence protected, that only those person who have bought licence key are able to use it. There will be a different licence for different domain.
What how can I achieve this?

Answer 1

You’re going to struggle with the three banes of licensing:

1. Someone smart will just take the code out
2. You’ll need to license per server or to have the keys circulating on the internet
3. Most people will just get a free alternative

To remedy the first one…you can’t. PHP is not compiled. the other two are less about code.