/**
* Obtains an instance of `YearMonth` from a text string.
*
* @param string $text The text to parse, such as `2007-12`.
* @param DateTimeParser|null $parser The parser to use, defaults to the ISO 8601 parser.
*
* @return YearMonth
*
* @throws DateTimeException If the date is not valid.
* @throws DateTimeParseException If the text string does not follow the expected format.
*/
public static function parse($text, DateTimeParser $parser = null)
{
if (!$parser) {
$parser = IsoParsers::yearMonth();
}
return YearMonth::from($parser->parse($text));
}
/**
* {@inheritdoc}
*/
public function expand($className, $value, array $options = [])
{
try {
switch ($className) {
case Duration::class:
return Duration::parse($value);
case LocalDate::class:
return LocalDate::parse($value);
case LocalTime::class:
return LocalTime::parse($value);
case LocalDateTime::class:
return LocalDateTime::parse($value);
case TimeZoneOffset::class:
return TimeZoneOffset::parse($value);
case TimeZoneRegion::class:
return TimeZoneRegion::parse($value);
case YearMonth::class:
return YearMonth::parse($value);
case ZonedDateTime::class:
return ZonedDateTime::parse($value);
}
} catch (DateTimeParseException $e) {
throw new ObjectNotConvertibleException($e->getMessage(), $e->getCode(), $e);
}
return null;
}
public function testToString()
{
$this->assertSame('2013-09', (string) YearMonth::of(2013, 9));
}
/**
* Resolves the date, resolving days past the end of month.
*
* @param integer $year The year to represent, validated as an integer from MIN_YEAR to MAX_YEAR.
* @param integer $month The month-of-year to represent, validated as an integer from 1 to 12.
* @param integer $day The day-of-month to represent, validated as an integer from 1 to 31.
*
* @return LocalDate
*/
private function resolvePreviousValid($year, $month, $day)
{
if ($day > 28) {
$day = min($day, YearMonth::of($year, $month)->getLengthOfMonth());
}
return new LocalDate($year, $month, $day);
}
/**
* Combines this year with a month to create a YearMonth.
*
* @param integer $month The month-of-year to use, from 1 to 12.
*
* @return YearMonth
*
* @throws DateTimeException If the month is invalid.
*/
public function atMonth($month)
{
return YearMonth::of($this->year, $month);
}
/**
* @param integer $year The expected year.
* @param integer $month The expected month.
* @param YearMonth $yearMonth The year-month to test.
*/
protected function assertYearMonthIs($year, $month, YearMonth $yearMonth)
{
$this->compare([$year, $month], [$yearMonth->getYear(), $yearMonth->getMonth()]);
}