PHP代码保护
企业级加密方案

// 原始代码 → 混淆 + 加密外壳
class CodeJiaMi {
    public function encrypt($source) {
        $this->validate($source);
        $tmp = $this->obfuscate($source);
        $code = $this->rebuild($tmp);
        $enc = $this->shell($code);
        return $enc;
    }

    private function shell($code) {
        return "<?php // CODEJIAMI v2.4 \n"
             . base64_encode($code);
    }
}