Crypt/Decrypt a string or text usign zend/crypt

composer.json

{
    "require": {
        "zendframework/zend-crypt":"dev-master"
    }
}

index.php

<?php

require_once __DIR__ . '/vendor/autoload.php';

use Zend\Crypt\BlockCipher;

$privateKey = 'a1w2b4c6v7b6fcdbatyr';

$blockCipher = BlockCipher::factory('mcrypt', array('algo' => 'aes'));
$blockCipher->setKey($privateKey);
$result = $blockCipher->encrypt('Tutorial crypt/decrypt');
echo 'Crypt: ' . $result . PHP_EOL;

$encrypted = '0c3d3e539040028b7fadf55c084694cdd7536d208eb19d1d26281183efc1d2f7RMyNXF1Q9d9qHppFm6TrD8eQNAcVLBWFAgyGSu5sJqWXtj/KijzzH5RhUvye6sd+';

$result = $blockCipher->decrypt($encrypted);
echo 'Decrypt: ' . $result . PHP_EOL;

response.md

$ php index.php
Crypt: c3c48afc00550bddeb058f8f6794a49aaae02eed9688dd05d69f705b400b43e3wCQNJSEQaTwWBExxJBkZdXkfofhvyCot7USEKRphp9ajjm6Hkk9qvKUOdeqB6QIo
Decrypt: Tutorial crypt/decrypt

For each call, the output hash is different