One option to protect your code against copy, ensuring nobody will be able to crack it is using ionCube. The ionCube Encoder compiles source code to bytecode being able to obfuscate and encrypt compiled code.
Once your php application is compiled with ioncube to bytecode, to run it you will have to install the ionCube Loader php extension.
In this post, we will show you how to install the ionCube loader
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