namespace Kernel\Extend;

use \Kernel\Extend\CacheBackendRedis as Redis;
use \Phalcon\Cache\Frontend\None as FrontendNone;

class SessionAdapterRedis extends \Phalcon\Session\Adapter\Redis  {

  public function __construct(array $options = []) {

    if(!isset($options['host'])) {
      $options['host'] = '127.0.0.1';
    }

    if(!isset($options['port'])) {
      $options['port'] = 6379;
    }

    if(!isset($options['persistent'])) {
      $options['persistent'] = false;
    }

    $lifetime = $options['lifetime'] ?? null;
    if($lifetime) {
      $this->_lifetime = $lifetime;
    }

    $this->_redis = new Redis(
      new FrontendNone(['lifetime' => $this->_lifetime]),
      $options
    );

    session_set_save_handler(
      [$this, "open"],
      [$this, "close"],
      [$this, "read"],
      [$this, "write"],
      [$this, "destroy"],
      [$this, "gc"]
    );

    $this->setOptions($options);
  }
}

<?php
namespace Kernel\Extend;

use \Library\Redis;
use \Phalcon\Cache\Exception;

class CacheBackendRedis extends \Phalcon\Cache\Backend\Redis {

  public function _connect() {

    $host = $this->_options['host'] ?? null;
    $port = $this->_options['port'] ?? null;
    $persistent = $this->_options['persistent'] ?? null;

    $redis = new Redis;

    if(!$host || !$port || is_null($persistent)) {
      throw new Exception("Unexpected inconsistency in options");
    }

    if($persistent) {
      $success = $redis->pconnect($host, $port);
    } else {
      $success = $redis->connect($host, $port);
    }

    if(!$success) {
      throw new Exception("Could not connect to the Redisd server ". $host .":". $port);
    }

    $auth = $this->_options['auth'] ?? null;
    if($auth && !empty($auth)) {
      $success = $redis->auth($auth);

      if(!$success) {
        throw new Exception("Failed to authenticate with the Redisd server");
      }
    }

    $index = $this->_options['index'] ?? null;
    if($index && $index > 0) {
      $success = $redis->select($index);

      if(!$success) {
        throw new Exception("Redis server selected database failed");
      }
    }

    $this->_redis = $redis;
  }

}

<?php
namespace Library;

class Redis extends \Redis
{
  public function settimeout($lastkey, $tt1) {
    return $this->expire($lastkey, $tt1);
  }
}