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<?php
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namespace PhpOffice\PhpSpreadsheet\Calculation\DateTimeExcel;
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use DateTime;
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use DateTimeImmutable;
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use PhpOffice\PhpSpreadsheet\Calculation\Information\ExcelError;
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class Current
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{
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    /**
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     * DATENOW.
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     *
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     * Returns the current date.
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     * The NOW function is useful when you need to display the current date and time on a worksheet or
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     * calculate a value based on the current date and time, and have that value updated each time you
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     * open the worksheet.
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     *
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     * NOTE: When used in a Cell Formula, MS Excel changes the cell format so that it matches the date
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     * and time format of your regional settings. PhpSpreadsheet does not change cell formatting in this way.
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     *
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     * Excel Function:
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     *        TODAY()
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     *
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     * @return DateTime|float|int|string Excel date/time serial value, PHP date/time serial value or PHP date/time object,
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     *                        depending on the value of the ReturnDateType flag
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     */
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    public static function today(): DateTime|float|int|string
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    {
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        $dti = new DateTimeImmutable();
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        $dateArray = Helpers::dateParse($dti->format('c'));
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        return Helpers::dateParseSucceeded($dateArray) ? Helpers::returnIn3FormatsArray($dateArray, true) : ExcelError::VALUE();
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    }
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    /**
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     * DATETIMENOW.
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     *
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     * Returns the current date and time.
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     * The NOW function is useful when you need to display the current date and time on a worksheet or
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     * calculate a value based on the current date and time, and have that value updated each time you
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     * open the worksheet.
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     *
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     * NOTE: When used in a Cell Formula, MS Excel changes the cell format so that it matches the date
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     * and time format of your regional settings. PhpSpreadsheet does not change cell formatting in this way.
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     *
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     * Excel Function:
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     *        NOW()
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     *
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     * @return DateTime|float|int|string Excel date/time serial value, PHP date/time serial value or PHP date/time object,
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     *                        depending on the value of the ReturnDateType flag
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     */
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    public static function now(): DateTime|float|int|string
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    {
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        $dti = new DateTimeImmutable();
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        $dateArray = Helpers::dateParse($dti->format('c'));
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        return Helpers::dateParseSucceeded($dateArray) ? Helpers::returnIn3FormatsArray($dateArray) : ExcelError::VALUE();
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    }
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}