php - Encrypted message doesn't appear on page -

i'm using pgp-2fa , on local working great. i've trying on host doesn't show encrypted message.

the way working is

$key = db::table('users')->select('pgp_key')->where('user_id', '=', $data['user_id'])->first(); $pgp = new pgp_2fa(); $msg = '';  $pgp->generatesecret(); $enc = $pgp->encryptsecret($key->pgp_key);  return view::make('users.auth', ['enc'=> $enc]); 

here i've selected users public pgp key profile , encrypt message must decrypt private key.

when var_dump($enc); i've received

bool(false)

and var_dump($pgp); object(pgp_2fa)#336 (1) { ["secret":"pgp_2fa":private]=> string(15) "603893251905515" }

which correct string(15) "603893251905515". problem in view don't see $enc because it's returning bool(false).

this have in view

<pre>{{ $enc }}</pre> 

again: working great on local can't figured out why doesn't work here. appreciated.

update:

var_dump($key); return correct key database user. i'm not copied whole key because long:

object(stdclass)#353 (1) { ["pgp_key"]=> string(1756) "-----begin pgp public key block----- version: gnupg v1 m............ 

update2: pgp-2fa.php

class pgp_2fa {     private $secret;  // generate safe hash of unencrypted secret, push session , save unencrypted secret locally   public function generatesecret(){      // generate unencrypted secret      $secret = generatesecretkey();      // hash secret bcrypt      $secret_hash = password_hash($secret, password_bcrypt);      // save within session     session::set('pgp-secret-hash', $secret_hash);     $this->secret = $secret; }  // encrypt secret pgp public key  public function encryptsecret($public_key){      // set gnupg homedir /tmp      putenv("gnupghome=/tmp");      // create new gnupg instance      $gpg = new gnupg();      // import given public key      $key = $gpg->import($public_key);      // add imported key encryption      $gpg->addencryptkey($key['fingerprint']);      // encrypt secret pgp message      $enc = $gpg->encrypt($this->secret);      // clear encryption key      $gpg->clearencryptkeys();      // return  pgp message      return $enc; } }