/**
* A string representation of this instant using ISO-8601 representation.
* <p>
* The format used is the same as {@link DateTimeFormatter#ISO_INSTANT}.
*
* @return string an ISO-8601 representation of this instant, not null
*/
public function __toString()
{
return DateTimeFormatter::ISO_INSTANT()->format($this);
}
public function test_isoInstant_basics()
{
$this->assertEquals(DateTimeFormatter::ISO_INSTANT()->getChronology(), null);
$this->assertEquals(DateTimeFormatter::ISO_INSTANT()->getZone(), null);
$this->assertEquals(DateTimeFormatter::ISO_INSTANT()->getResolverStyle(), ResolverStyle::STRICT());
}