PHP Licensing system

[Ryzie]

I have been planning to make a PHP Licensing system for a few days, except I'm having a little bit of trouble.
Coding isn't a problem.
Just that, If I make users put a script onto their products, why can't purchases just remove the script.

Please help me, with any ideas, on how I could do this.
Thankyou


Ryzie.

[Dentafrice]

I have been planning to make a PHP Licensing system for a few days, except I'm having a little bit of trouble.
Coding isn't a problem.
Just that, If I make users put a script onto their products, why can't purchases just remove the script.

Please help me, with any ideas, on how I could do this.
Thankyou


Ryzie.

Nothing is stopping them from removing the script, hence why you need to use an encoded file.

Use some logic here..

Encode the installation file, during installation have them input their key, then query your server.. if it is right it returns an encoded version of your core, inside the core is the main check system (which communicates with your license server).

That way if the key is not valid, the main communication point in the application (the core), is not going to work.

Here's how it would work in my situation.

-- TehUpload
---- core
----- database
----- upload
----- user
------- album
----- filemanagement

All those are under TehUpload, which is under core.

If you remove the core.. here's what happens.

-- TehUpload
---------------
----- database
----- upload
----- user
------- album
----- filemanagement

There's no communication point between the application and the rest of the things. Would work logically, not sure if it would work practically

[redtom]

Basicly do what celeb said.

Encode a key file and include the lisence script in that.

[MrCraig]

Kinda hard to do though as you'll have to encode all your clients functions files using ioncube or zend unless people would find a way to hack out the licencing system. :S

Youd probably have to stick to just obfuscilating it and use ioncube to encode the de-obfuscilating file and then try find a way so users cant echo out the de-obfuscilated code. :S

[Dentafrice]

Not all of them, you only need one file encoded, as well as the installation files.

All of the files can be normal, except the core.

[MrCraig]

Noo i meant:

All - referring to the clients he has
functions files - meaning the function file each of his clients has

[iUnknown]

Just encode the file that relates to the licensing and make sure that if they delete the file everything stops working, rather than being able to continue somehow.

Easiest if everything is encoded.

[Dentafrice]

Yeah, but it's a pain, and nobody can develop for it.. so it's easier with my method.

[VistaBoy]

Yea as Dentafrice and someone else said just encode your install files and a core/license file.

[Dentafrice]

Just have it in the construct of your core, that when it is constructed, it automatically calls a function inside which does the license checking.