openssl_encrypt
$textToEncrypt = "My super secret information."; $encryptionMethod = "AES-256-CBC"; // AES is used by the U.S. gov't to encrypt top secret documents. $secretHash = "25c6c7ff35b9979b151f2136cd13b0ff"; //To encrypt $encryptedMessage = openssl_encrypt($textToEncrypt, $encryptionMethod, $secretHash); //To Decrypt $decryptedMessage = openssl_decrypt($encryptedMessage, $encryptionMethod, $secretHash); //Result echo "Encrypted: $encryptedMessage <br>Decrypted: $decryptedMessage";