Best solution to protect PHP code without encryption(无需加密即可保护 PHP 代码的最佳解决方案)

Encryption in JavaScript and decryption with PHP(JavaScript 加密和 PHP 解密)

Encrypt with PHP, Decrypt with Javascript (cryptojs)(用 PHP 加密，用 Javascript 解密 (cryptojs))

Is it possible to hide/encode/encrypt php source code and let others have the system?(是否可以隐藏/编码/加密php源代码并让其他人拥有系统?)

Create an encrypted zip archive with PHP(使用 PHP 创建加密的 zip 存档)

MCrypt rijndael-128 to OpenSSL aes-128-ecb conversion(MCrypt rijndael-128 到 OpenSSL aes-128-ecb 的转换)

Cross platform (php to C# .NET) encryption/decryption with Rijndael(使用 Rijndael 进行跨平台(php 到 C# .NET)加密/解密)

C# Encryption to PHP Decryption(C#加密转PHP解密)

Encrypt string in PHP and decrypt in Node.js(在 PHP 中加密字符串并在 Node.js 中解密)

Use openssl_encrypt to replace Mcrypt for 3DES-ECB encryption(使用 openssl_encrypt 替换 Mcrypt 进行 3DES-ECB 加密)

Decrypting strings in Python that were encrypted with MCRYPT_RIJNDAEL_256 in PHP(在 Python 中解密用 PHP 中的 MCRYPT_RIJNDAEL_256 加密的字符串)

Rijndael 256 Encrypt/decrypt between c# and php?(Rijndael 256 在 c# 和 php 之间加密/解密?)

Can anyone get access to my PHP source code?(任何人都可以访问我的 PHP 源代码吗?)

Comparing passwords with crypt() in PHP(用 PHP 中的 crypt() 比较密码)

Mcrypt js encryption value is different than that produced by PHP mcrypt / Mcrypt JS decrypt doesn#39;t work for UTF-8 chars(Mcrypt js 加密值与 PHP 生成的不同 mcrypt/Mcrypt JS 解密不适用于 UTF-8 字符)

How do I convert this C# Rijndael encryption to PHP?(如何将此 C# Rijndael 加密转换为 PHP?)

Encrypt with CryptoJS and decrypt with PHP(使用 CryptoJS 加密并使用 PHP 解密)

SSL Alternative - encrypt password with JavaScript submit to PHP to decrypt(SSL 替代 - 使用 JavaScript 加密密码提交给 PHP 进行解密)

How to encrypt HTML source code output using PHP(如何使用 PHP 加密 HTML 源代码输出)

mcrypt_decrypt() error change key size(mcrypt_decrypt() 错误更改密钥大小)