(PECL mongo >= 1.0.1)
MongoId::getTimestamp — Gets the number of seconds since the epoch that this id was created
This returns the same thing as running time() when the id is created.
Esta função não possui parâmetros.
Returns the number of seconds since the epoch that this id was created. There are only four bytes of timestamp stored, so MongoDate is a better choice for storing exact or wide-ranging times.