php security - php code protection

1. How to protect the PHP code you wrote? Prevent leakage. I only know that there is an encrypted zend guard, but I have never actually used it. Is it undecryptable after encryption? 2. Like mainstream DISCUZ, PHPCMS, and ECSTORE, what is their copyright protection like? How does he notify his server that unauthorized websites are operating?

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1. How to protect the PHP code you wrote? Prevent leakage. I only know that there is an encrypted zend guard, but I have never actually used it. Is it undecryptable after encryption? 2. Like mainstream DISCUZ, PHPCMS, and ECSTORE, what is their copyright protection like? How does he notify his server that unauthorized websites are operating?

php is an interpreted language and cannot be protected against leaks because it always needs to be decompressed when running.

All it can do is confuse, like what you said

zend guard
, the principle is to change the variable names and function names into a long string of garbled characters, making it more difficult to read. The mainstream copyright protection is based on legal constraints. Writing authorization in the code is of no use. The source code is there, and it can’t be bypassed by modifying it. Another constraint is after-sales service~

The base of Shangpai's Ecstore source code core is all encrypted. When commercially authorized and installed on a machine, each set of source code is configured with a serial number and bound to the machine, and the domain name must be registered with Shangpai company.