Protect PHP Scripts using the SourceGuardian PHP Encoder. We encode your PHP code by compiling the PHP source code into a binary bytecode format, which is then supplemented an encryption layer. You can use obfuscation of several levels of complexity to add another protection layer. No changes can be made to the protected scripts once they have been encoded, which adds an additional security level and any changes to an encoded file will make it unusable. SourceGuardian for PHP Endcoder is the best solution to protect your PHP scripts.