guint32 date to timestamp in php

问题

I have a date format that is from a GTK\GNOME app that is stored in guint32 date: example: 724605 which I would like to convert into a time-stamp for use with-in a PHP script? Any ideas I have been using Google and trying to come up with a way to convert this?

来源：https://stackoverflow.com/questions/8297369/guint32-date-to-timestamp-in-php