我试图在瞬间保存加密数据（在PHP中使用AES-256-CBC），但由于某些原因，它一直失败。瞬态键的长度低于45个字符的要求，数据量不足以超过长文本大小。我试着在phpmyadmin中手动执行，它可以工作，这与WordPress查看数据的方式有关。有什么想法吗？

function encrypt_text( $text ){
  $textToEncrypt = $text;
  $encryptionMethod = \'AES-256-CBC\';  // AES is used by the U.S. gov\'t to encrypt top secret documents.
  $secretHash = \'secrethashgoeshere\';
  $iv_size = openssl_cipher_iv_length( $encryptionMethod );
  $iv = openssl_random_pseudo_bytes( $iv_size );
  $encryptedMessage = openssl_encrypt( $textToEncrypt, $encryptionMethod, $secretHash, 0, $iv );
  $encryptedMessage = $iv.$encryptedMessage; // Add the IV to the beginning of the encrypted string.
  return $encryptedMessage;
}

function decrypt_text( $encryptedValue ){
    $encryptionMethod = \'AES-256-CBC\';  // AES is used by the U.S. gov\'t to encrypt top secret documents.
    $secretHash = \'secrethashgoeshere\';
    $iv_size = openssl_cipher_iv_length( $encryptionMethod );
    $iv = substr( $encryptedValue, 0, $iv_size ); // Retrieve the IV that was appended to the begining of the encrypted string.
    $decryptedMessage = openssl_decrypt( substr( $encryptedValue, $iv_size ), $encryptionMethod, $secretHash, 0, $iv );
    return $decryptedMessage;
} 

$json_contact_info = json_encode( $contact_info );
$transient_data =  encrypt_text( $json_contact_info );
$transient_array = array( \'data\' => $transient_data );
$transient_set = set_transient( $transient_name, $transient_array, 60 * 60 * 24 * 7 );

$decrypted_transient_data = decrypt_text( $transient_data );
$cr_json = json_decode( $decrypted_transient_data );