Hey all -

I'm selling a custom PHP solution to FileMaker users. It uses FileMaker's PHP 
API, so everyone who has FileMaker Server is already set up to use it, but very 
few of them have any knowledge of how to set up a server or do anything PHP 
related. But I do want to add some level of code obfuscation to prevent them 
from making simple changes to my code that allow them to exceed the privileges 
they've purchased.

I've looked at custom code encryption services like Ioncube and phpCipher, but 
in my estimation, deploying the needed server-side code for these is going to 
be beyond the capabilities of a large segment of my customers. I would rather 
have a few customers cheat me than offer a product that most customers are 
unable to figure out how to run.

So I was thinking of doing something like base64_encoding the crucial chunk of 
my code (maybe 20 lines worth) and using eval(base64_decode($that_content)) to 
run it. I figure that will scare away most of the customers who might be able 
to edit my code. Can anyone suggest something that goes one better?

- Brian
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