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<?php |
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namespace Brtriver\DateRange; |
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use DateTime; |
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use DateInterval; |
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use DatePeriod; |
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use IteratorAggregate; |
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class DateRange implements IteratorAggregate |
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{ |
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private $start; |
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private $end; |
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private $interval; |
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private $excludeStartDate = false; |
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private $excludeEndDate = false; |
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const INTERVAL = 'P1D'; |
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public function __construct() { |
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$this->parseArguments(func_get_args()); |
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if (!($this->start instanceof DateTime) || !($this->end instanceof DateTime)) { |
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throw new \InvalidArgumentException('cannot parse start and end date'); |
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} |
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if ($this->start->getTimestamp() > $this->end->getTimestamp()) { |
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throw new \InvalidArgumentException('end date is the day before than start date'); |
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} |
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$this->interval = new DateInterval(self::INTERVAL); |
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} |
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private function parseArguments($args) |
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{ |
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if (count($args) === 1) { |
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list($this->start, $this->end) = self::getDateFromArray($args[0]); |
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} elseif (count($args) === 2) { |
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$this->start = self::convertToDateTime($args[0]); |
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$this->end = self::convertToDateTime($args[1]); |
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} else { |
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throw new \InvalidArgumentException('Invalid number of arguments'); |
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} |
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} |
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private static function getDateFromArray($startEndArray) |
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{ |
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$start = $end = null; |
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if (is_array($startEndArray) && count($startEndArray) === 2) { |
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$values = array_values($startEndArray); |
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$start = self::convertToDateTime($values[0]); |
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$end = self::convertToDateTime($values[1]); |
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} |
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return [$start, $end]; |
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} |
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public function excludeStartDate() |
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{ |
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$this->excludeStartDate = true; |
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} |
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public function excludeEndDate() |
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{ |
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$this->excludeEndDate = true; |
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} |
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public function setInterval(DateInterval $interval) |
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{ |
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$this->interval = $interval; |
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} |
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public function getInterval() |
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{ |
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return $this->interval; |
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} |
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public function getDatePeriod(DateInterval $interval = null) |
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{ |
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if (!$this->excludeEndDate) { |
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$end = clone $this->end; |
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// DatePeriod does not include end date so, plus 1 sec to end date. |
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$end->modify('+1 sec'); |
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} else { |
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$end = $this->end; |
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} |
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$option = null; |
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if ($this->excludeStartDate) { |
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$option = DatePeriod::EXCLUDE_START_DATE; |
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} |
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return new DatePeriod($this->start, ($interval) ?: $this->interval, $end, $option); |
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} |
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public function getIterator() |
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{ |
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return $this->getDatePeriod(); |
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} |
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public static function convertToDateTime($param) |
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{ |
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if ($param instanceOf DateTime) { |
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return $param; |
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} |
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if (strtotime($param) === false) { |
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throw new \InvalidArgumentException('Invalid datetime string'); |
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} |
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return new DateTime($param); |
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} |
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public function getStart() |
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{ |
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return $this->start; |
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} |
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public function getEnd() |
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{ |
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return $this->end; |
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} |
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public function contains($dateString) |
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{ |
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$date = self::convertToDateTime($dateString); |
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$timestamp = $date->getTimestamp(); |
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if ($this->excludeStartDate) { |
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$isAfterThanStart = $this->start->getTimestamp() < $timestamp; |
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} else { |
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$isAfterThanStart = $this->start->getTimestamp() <= $timestamp; |
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} |
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if ($this->excludeEndDate) { |
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$isBeforeThanEnd = $timestamp < $this->end->getTimestamp(); |
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} else { |
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$isBeforeThanEnd = $timestamp <= $this->end->getTimestamp(); |
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} |
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return $isAfterThanStart && $isBeforeThanEnd; |
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} |
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} |
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brtriver /
date-range
