(PECL mongo >= 1.0.1)
MongoTimestamp::__construct — Creates a new timestamp.
Creates a new timestamp. If no parameters are given, the current time is used and the increment is automatically provided. The increment is set to 0 when the module is loaded and is incremented every time this constructor is called (without the $inc parameter passed in).
Number of seconds since January 1st, 1970.
Returns this new timestamp.