/** * Factory create header from string. * * @param string $headerLine * * @return $this */ public static function fromString($headerLine) { if (null === ($headerName = static::getHeaderName())) { GenericHeader::assertEmptyHeaderFieldName($headerName); } list($fieldName, $fieldValue) = GenericHeader::splitHeaderLine($headerLine); return static::create($fieldName, $fieldValue); }
/** * Constructor. * * @param DateTime|null $date */ public function __construct(DateTime $date = null) { GenericHeader::assertEmptyHeaderFieldName(static::$headerName); $this->setDate(null !== $date ? $date : new DateTime()); }