Most secure way to encode php files

I came across many ways and countless number of applications to encode php files, as in zend encoder and iconcube, as well as applications like php lockit.

my question is, what is the most effective way to ensure my encoded files wont be decoded.

the following criteria are a plus: no need f开发者_Python百科or extra plugins for php. lightweight and no extensive resource power during decryption free and easy to use encoding via windows platform (i do not wish to encode files in the main server)

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I've seen a lot of Wordpress malware obfuscated like this:

eval(base64_decode('some-base64-encoded-php-payload'));

This definitely won't ensure that your files can't be decoded, though. At best, it may make your program more "moron resistant." (I dare not say "moron proof".)

If people out there can reverse Stuxnet, they can reverse your PHP, you know? But if you're just trying to hide your code from casual reading, the above might be helpful.