/**
* @param $key
* @param $ttl_left
* @return mixed|string
*/
protected function read_value($key, &$ttl_left = -1)
{
$value = $this->redis->get($this->prefix . $key);
if ($this->redis->Exists($this->serialize_key_prefix . $key)) {
$value = unserialize($value);
}
if ($ttl_left !== -1) {
$ttl_left = $this->redis->TTL($this->prefix . $key);
if ($ttl_left < 0) {
$ttl_left = 0;
}
}
return $value;
}
/**
* Read data from memory storage
*
* @param string|array $key (string or array of string keys)
* @param mixed $ttl_left = (ttl - time()) of key. Use to exclude dog-pile effect, with lock/unlock_key methods.
* @return mixed
*/
public function read($key, &$ttl_left = -1)
{
$r = unserialize($this->redis->get($this->prefix . $key));
if ($r === false) {
return false;
}
if ($ttl_left !== -1) {
$ttl_left = $this->redis->TTL($this->prefix . $key);
if ($ttl_left < 1) {
$ttl_left = self::max_ttl;
}
}
return $r;
}
