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<?php // Set the method $method = 'AES-128-CBC'; // Set the encryption key $encryption_key = 'myencryptionkey'; // Generet a random initialisation vector $iv = openssl_random_pseudo_bytes(openssl_cipher_iv_length($method)); // Define the date to be encrypted $data = "Encrypt me, please!"; var_dump("Before encryption: $data"); // Encrypt the data $encrypted = openssl_encrypt($data, $method, $encryption_key, 0, $iv); var_dump("Encrypted: ${encrypted}"); // Append the vector at the end of the encrypted string $encrypted = $encrypted . ':' . $iv; var_dump($encrypted); // Explode the string using the `:` separator. $parts = explode(':', $encrypted); // Decrypt the data $decrypted = openssl_decrypt($parts[0], $method, $encryption_key, 0, $parts[1]); var_dump("Decrypted: ${decrypted}");

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