Before this change, var_export()'s output for stdClass objects calls
the non-existent stdClass::__set_state method, and is therefore useless.
This commit makes var_export() output an (object) cast from an array
instead, which when evaluated, will produce a stdClass object. Other
classes see unchanged output.
To better support IntlCalendar, added this function:
string IntlDateFormatter::formatObject(IntlCalendar|DateTime $obj [,
array|int|string $format = null [, string $locale = null).
$format is either of the constants IntlDateFormatter::FULL, etc., in
which case this format applies to both the date and the time, an array
in the form array($dateFormat, $timeFormat), or a string with the
SimpleDateFormat pattern.
This uses both the Calendar type and the timezone of the passed object
to configure the formatter (a GregorianCalendar is forced for
DateTime).
Some stuff was moved around and slighlt modified to allow for more code
reuse.
Peter Kokot