/**
* Get a property
*
* @param string $name
* @throws \InvalidArgumentException
* @return integer
*/
public function __get($name)
{
if (array_key_exists($name, $this->properties)) {
if (in_array($name, ['W3C', 'ymd', 'iso'])) {
return (string) $this->format($this->properties[$name]);
}
return (int) $this->format($this->properties[$name]);
}
switch ($name) {
case 'is':
return Compare::start($this);
case 'diff':
return Diff::start($this);
}
throw new \InvalidArgumentException();
}