/**
* Read session data
*
* @param string $id
* @return string
*/
public function read($id)
{
$session = $this->mongoCollection->findOne(['_id' => $id, $this->options->getNameField() => $this->sessionName]);
if (null !== $session) {
// check if session has expired if index is not used
if (!$this->options->useExpireAfterSecondsIndex()) {
$timestamp = $session[$this->options->getLifetimeField()];
$timestamp += floor((string) $session[$this->options->getModifiedField()] / 1000);
// session expired
if ($timestamp <= time()) {
$this->destroy($id);
return '';
}
}
return $session[$this->options->getDataField()]->getData();
}
return '';
}
