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<?php |
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namespace Dontdrinkandroot\Date; |
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class FlexDate |
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{ |
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const PRECISION_YEAR = 'year'; |
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const PRECISION_MONTH = 'month'; |
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const PRECISION_DAY = 'day'; |
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/** |
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* @var int|null |
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*/ |
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protected $year; |
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/** |
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* @var int|null |
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*/ |
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protected $month; |
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/** |
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* @var int|null |
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*/ |
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protected $day; |
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/** |
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* @param int|null $year |
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* @param int|null $month |
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* @param int|null $day |
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*/ |
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public function __construct($year = null, $month = null, $day = null) |
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{ |
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$this->year = $year; |
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$this->month = $month; |
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$this->day = $day; |
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} |
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/** |
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* @return int|null |
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*/ |
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public function getYear() |
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{ |
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return $this->year; |
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} |
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/** |
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* @param int|null $year |
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*/ |
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public function setYear($year) |
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{ |
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$this->year = $year; |
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} |
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/** |
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* @return int|null |
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*/ |
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public function getMonth() |
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{ |
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return $this->month; |
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} |
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/** |
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* @param int|null $month |
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*/ |
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public function setMonth($month) |
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{ |
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$this->month = $month; |
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} |
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/** |
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* @return int|null |
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*/ |
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public function getDay() |
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{ |
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return $this->day; |
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} |
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/** |
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* @param int|null $day |
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*/ |
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public function setDay($day) |
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{ |
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$this->day = $day; |
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} |
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/** |
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* @return bool |
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*/ |
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public function hasValue() |
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{ |
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return null !== $this->year || null !== $this->month || null !== $this->day; |
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} |
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/** |
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* @return bool |
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*/ |
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public function isCompleteDate() |
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{ |
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return null !== $this->year && null !== $this->month && null !== $this->day; |
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} |
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/** |
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* @return bool |
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*/ |
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public function isValid() |
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{ |
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try { |
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$this->assertValid(); |
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return true; |
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} catch (\Exception $e) { |
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return false; |
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} |
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} |
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/** |
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* @return bool |
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* @throws \Exception |
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*/ |
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public function assertValid() |
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{ |
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if (null !== $this->day && null === $this->month) { |
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throw new \Exception('Day set, but no month'); |
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} |
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if (null !== $this->month && null === $this->year) { |
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throw new \Exception('Month, but no year'); |
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} |
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return true; |
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} |
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/** |
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* @return bool |
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*/ |
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public function isValidDate() |
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{ |
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return checkdate($this->month, $this->day, $this->year); |
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} |
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/** |
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* @¶eturn \DateTime |
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*/ |
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public function toDateTime() |
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{ |
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$dateTime = new \DateTime(); |
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$inferredYear = $this->year !== null ? $this->year : 0; |
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$inferredMonth = $this->month !== null ? $this->month : 1; |
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$inferredDay = $this->day !== null ? $this->day : 1; |
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$dateTime->setDate($inferredYear, $inferredMonth, $inferredDay); |
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return $dateTime; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function __toString() |
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{ |
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$string = ''; |
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if (null !== $this->year) { |
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$string .= $this->year; |
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} |
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if (null !== $this->month) { |
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$string .= '-'; |
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$string .= str_pad($this->month, 2, '0', STR_PAD_LEFT); |
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} |
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if (null !== $this->day) { |
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$string .= '-'; |
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$string .= str_pad($this->day, 2, '0', STR_PAD_LEFT); |
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} |
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return $string; |
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} |
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/** |
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* @param string $dateString |
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* |
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* @return FlexDate |
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*/ |
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public static function fromString($dateString) |
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{ |
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$flexDate = new FlexDate(); |
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if (empty($dateString)) { |
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return $flexDate; |
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} |
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$parts = explode('-', $dateString); |
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$numParts = count($parts); |
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if ($numParts > 0) { |
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$flexDate->setYear((int)$parts[0]); |
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} |
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if ($numParts > 1) { |
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$flexDate->setMonth((int)$parts[1]); |
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} |
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if ($numParts > 2) { |
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$flexDate->setDay((int)$parts[2]); |
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} |
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return $flexDate; |
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} |
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public function getPrecision() |
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{ |
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if (null === $this->year) { |
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return null; |
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} |
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if (null === $this->month) { |
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return self::PRECISION_YEAR; |
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} |
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if (null === $this->day) { |
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return self::PRECISION_MONTH; |
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} |
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return self::PRECISION_DAY; |
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} |
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} |
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