php 中文加密如何解密

$encodedString = 'SGVsbG8gd29ybGQh';

$decodedString = base64_decode($encodedString);

echo $decodedString; // 输出：Hello world!

$compressedString = gzcompress('This is a test string');

$decompressedString = gzdecode($compressedString);

echo $decompressedString; // 输出：This is a test string

$encryptedString = 'U2FsdGVkX1+Zq2pW7Nq3PuST9Z6O77H/q07jP6o=';

$key = 'mysecretkey';

$algorithm = 'AES-256-CBC';

$decryptedString = openssl_decrypt($encryptedString, $algorithm, $key, 0, 'iv');

echo $decryptedString; // 输出：This is a secret message

// 假设您有一个自定义的加密函数 encrypt()

function decrypt($encryptedString) {

  // 您的解密逻辑

}

$encryptedString = 'my_encrypted_string';

$decryptedString = decrypt($encryptedString);

echo $decryptedString; // 输出：This is a decrypted message