Added the DAYS() function
https://support.office.com/en-us/article/days-function-57740535-d549-4395-8728-0f07bff0b9df
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@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
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## [Unreleased]
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### Added
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- Add the DAYS() function - [#594](https://github.com/PHPOffice/PhpSpreadsheet/pull/594)
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### Fixed
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- Sheet title can contain exclamation mark - [#325](https://github.com/PHPOffice/PhpSpreadsheet/issues/325)
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@ -650,6 +650,11 @@ class Calculation
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'functionCall' => [DateTime::class, 'DAYOFMONTH'],
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'argumentCount' => '1',
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],
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'DAYS' => [
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'category' => Category::CATEGORY_DATE_AND_TIME,
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'functionCall' => [DateTime::class, 'DAYS'],
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'argumentCount' => '2',
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],
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'DAYS360' => [
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'category' => Category::CATEGORY_DATE_AND_TIME,
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'functionCall' => [DateTime::class, 'DAYS360'],
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@ -70,7 +70,7 @@ class DateTime
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(Functions::getCompatibilityMode() == Functions::COMPATIBILITY_GNUMERIC)) {
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return Functions::VALUE();
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}
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if ((is_object($dateValue)) && ($dateValue instanceof \DateTimeImmutable)) {
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if ((is_object($dateValue)) && ($dateValue instanceof \DateTimeInterface)) {
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$dateValue = Date::PHPToExcel($dateValue);
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} else {
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$saveReturnDateType = Functions::getReturnDateType();
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@ -764,6 +764,52 @@ class DateTime
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return $retVal;
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}
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/**
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* DAYS.
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*
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* Returns the number of days between two dates
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*
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* Excel Function:
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* DAYS(endDate, startDate)
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*
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* @category Date/Time Functions
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*
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* @param \DateTimeImmutable|float|int|string $endDate Excel date serial value (float),
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* PHP date timestamp (integer), PHP DateTime object, or a standard date string
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* @param \DateTimeImmutable|float|int|string $startDate Excel date serial value (float),
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* PHP date timestamp (integer), PHP DateTime object, or a standard date string
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*
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* @return int|string Number of days between start date and end date or an error
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*/
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public static function DAYS($endDate = 0, $startDate = 0)
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{
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$startDate = Functions::flattenSingleValue($startDate);
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$endDate = Functions::flattenSingleValue($endDate);
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$startDate = self::getDateValue($startDate);
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if (is_string($startDate)) {
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return Functions::VALUE();
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}
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$endDate = self::getDateValue($endDate);
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if (is_string($endDate)) {
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return Functions::VALUE();
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}
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// Execute function
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$PHPStartDateObject = Date::excelToDateTimeObject($startDate);
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$PHPEndDateObject = Date::excelToDateTimeObject($endDate);
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$diff = $PHPStartDateObject->diff($PHPEndDateObject);
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$days = $diff->days;
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if ($diff->invert) {
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$days = -$days;
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}
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return $days;
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}
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/**
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* DAYS360.
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*
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@ -88,6 +88,7 @@ DATEDIF
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DATEVALUE
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DAVERAGE
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DAY
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DAYS
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DAYS360
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DB
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DCOUNT
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@ -453,6 +453,22 @@ class DateTimeTest extends TestCase
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return require 'data/Calculation/DateTime/DATEDIF.php';
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}
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/**
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* @dataProvider providerDAYS
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*
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* @param mixed $expectedResult
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*/
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public function testDAYS($expectedResult, ...$args)
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{
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$result = DateTime::DAYS(...$args);
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self::assertEquals($expectedResult, $result, null, 1E-8);
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}
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public function providerDAYS()
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{
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return require 'data/Calculation/DateTime/DAYS.php';
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}
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/**
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* @dataProvider providerDAYS360
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*
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@ -0,0 +1,99 @@
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<?php
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return [
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[
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'#VALUE!',
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'2007-1-10',
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'ABC',
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],
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[
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'#VALUE!',
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'DEF',
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'2007-1-1',
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],
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[
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9,
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'2007-1-10',
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'2007-1-1',
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],
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[
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364,
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'2007-12-31',
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'2007-1-1',
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],
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[
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547,
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'2008-7-1',
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'2007-1-1',
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],
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[
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30,
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'2007-1-31',
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'2007-1-1',
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],
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[
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31,
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'2007-2-1',
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'2007-1-1',
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],
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[
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58,
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'2007-2-28',
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'2007-1-1',
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],
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[
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1,
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'2007-2-1',
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'2007-1-31',
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],
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[
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29,
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'2007-3-1',
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'2007-1-31',
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],
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[
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59,
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'2007-3-31',
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'2007-1-31',
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],
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[
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244,
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'2008-9-1',
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'2008-1-1',
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],
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[
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425,
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'2008-4-1',
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'2007-2-1',
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],
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[
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17358,
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'2008-6-28',
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'1960-12-19',
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],
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[
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9335,
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'2008-6-28',
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'1982-12-7',
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],
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[
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32,
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'2000-3-31',
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'2000-2-28',
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],
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[
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31,
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'2000-3-31',
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'2000-2-29',
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],
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[
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31,
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new \DateTime('2000-3-31'),
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new \DateTimeImmutable('2000-2-29'),
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],
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[
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31,
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36616,
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36585,
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],
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];
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