在PHP中,可以使用以下函数进行加密和解密:
$originalString = "Hello World";
$encryptedString = md5($originalString);
echo "Encrypted String: " . $encryptedString;
$originalString = "Hello World";
$encryptedString = sha1($originalString);
echo "Encrypted String: " . $encryptedString;
$originalString = "Hello World";
$encodedString = base64_encode($originalString);
echo "Encoded String: " . $encodedString;
$decodedString = base64_decode($encodedString);
echo "Decoded String: " . $decodedString;
$originalString = "Hello World";
$key = "mysecretkey";
$encryptedString = openssl_encrypt($originalString, "AES-128-CBC", $key);
echo "Encrypted String: " . $encryptedString;
$decryptedString = openssl_decrypt($encryptedString, "AES-128-CBC", $key);
echo "Decrypted String: " . $decryptedString;
这些函数提供了一些基本的加密和解密功能,但在实际应用中,可能需要更强大的加密算法和安全性。在这种情况下,可以使用专业的加密库或框架,如OpenSSL、Mcrypt或Libsodium。
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