<?php

namespace PhpOffice\PhpSpreadsheet\Calculation\Database;

use PhpOffice\PhpSpreadsheet\Calculation\Information\ExcelError;
use PhpOffice\PhpSpreadsheet\Calculation\MathTrig;

class DSum extends DatabaseAbstract
{
    /**
     * DSUM.
     *
     * Adds the numbers in a column of a list or database that match conditions that you specify.
     *
     * Excel Function:
     *        DSUM(database,field,criteria)
     *
     * @param mixed[] $database The range of cells that makes up the list or database.
     *                                        A database is a list of related data in which rows of related
     *                                        information are records, and columns of data are fields. The
     *                                        first row of the list contains labels for each column.
     * @param int|string $field Indicates which column is used in the function. Enter the
     *                                        column label enclosed between double quotation marks, such as
     *                                        "Age" or "Yield," or a number (without quotation marks) that
     *                                        represents the position of the column within the list: 1 for
     *                                        the first column, 2 for the second column, and so on.
     * @param mixed[] $criteria The range of cells that contains the conditions you specify.
     *                                        You can use any range for the criteria argument, as long as it
     *                                        includes at least one column label and at least one cell below
     *                                        the column label in which you specify a condition for the
     *                                        column.
     *
     * @return null|float|string
     */
    public static function evaluate($database, $field, $criteria, bool $returnNull = false)
    {
        $field = self::fieldExtract($database, $field);
        if ($field === null) {
            return $returnNull ? null : ExcelError::VALUE();
        }

        return MathTrig\Sum::sumIgnoringStrings(
            self::getFilteredColumn($database, $field, $criteria)
        );
    }
}

• [F] DatabaseAbstract.php
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• [F] DAverage.php
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• [F] DCount.php
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• [F] DCountA.php
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• [F] DGet.php
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• [F] DMax.php
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• [F] DMin.php
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• [F] DProduct.php
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• [F] DStDev.php
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• [F] DStDevP.php
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• [F] DSum.php
  Delete
• [F] DVar.php
  Delete
• [F] DVarP.php
  Delete

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