public function testPhpFormatWithToString()
{
Date::setOptions(array('format_type' => 'php'));
$date = new Date('10.10.2009 10:10:10');
$this->assertEquals('10.10.2009 10:10:10', $date->toString("d.m.Y H:i:s"));
$date->setTime("23:59:59");
$this->assertEquals('10.10.2009 23:59:59', $date->toString("d.m.Y H:i:s"));
}