* ``format``: The date format
* ``timezone``: The date timezone
-.. _`strtotime`: http://www.php.net/strtotime
-.. _`DateTime`: http://www.php.net/DateTime
-.. _`DateInterval`: http://www.php.net/DateInterval
-.. _`date`: http://www.php.net/date
-.. _`DateInterval::format`: http://www.php.net/DateInterval.format
+.. _`strtotime`: https://secure.php.net/strtotime
+.. _`DateTime`: https://secure.php.net/DateTime
+.. _`DateInterval`: https://secure.php.net/DateInterval
+.. _`date`: https://secure.php.net/date
+.. _`DateInterval::format`: https://secure.php.net/DateInterval.format