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<?php
namespace PhpOffice\PhpSpreadsheet\Calculation\MathTrig;
use PhpOffice\PhpSpreadsheet\Calculation\Functions;
class Sum
{
/**
* SUM, ignoring non-numeric non-error strings. This is eventually used by SUMIF.
*
* SUM computes the sum of all the values and cells referenced in the argument list.
*
* Excel Function:
* SUM(value1[,value2[, ...]])
*
* @param mixed ...$args Data values
*
* @return float|string
*/
public static function sumIgnoringStrings(...$args)
{
$returnValue = 0;
// Loop through the arguments
foreach (Functions::flattenArray($args) as $arg) {
// Is it a numeric value?
if (is_numeric($arg)) {
$returnValue += $arg;
} elseif (Functions::isError($arg)) {
return $arg;
}
}
return $returnValue;
}
/**
* SUM, returning error for non-numeric strings. This is used by Excel SUM function.
*
* SUM computes the sum of all the values and cells referenced in the argument list.
*
* Excel Function:
* SUM(value1[,value2[, ...]])
*
* @param mixed ...$args Data values
*
* @return float|string
*/
public static function sumErroringStrings(...$args)
{
$returnValue = 0;
// Loop through the arguments
$aArgs = Functions::flattenArrayIndexed($args);
foreach ($aArgs as $k => $arg) {
// Is it a numeric value?
if (is_numeric($arg) || empty($arg)) {
if (is_string($arg)) {
$arg = (int) $arg;
}
$returnValue += $arg;
} elseif (is_bool($arg)) {
$returnValue += (int) $arg;
} elseif (Functions::isError($arg)) {
return $arg;
// ignore non-numerics from cell, but fail as literals (except null)
} elseif ($arg !== null && !Functions::isCellValue($k)) {
return Functions::VALUE();
}
}
return $returnValue;
}
/**
* SUMPRODUCT.
*
* Excel Function:
* SUMPRODUCT(value1[,value2[, ...]])
*
* @param mixed ...$args Data values
*
* @return float|string The result, or a string containing an error
*/
public static function product(...$args)
{
$arrayList = $args;
$wrkArray = Functions::flattenArray(array_shift($arrayList));
$wrkCellCount = count($wrkArray);
for ($i = 0; $i < $wrkCellCount; ++$i) {
if ((!is_numeric($wrkArray[$i])) || (is_string($wrkArray[$i]))) {
$wrkArray[$i] = 0;
}
}
foreach ($arrayList as $matrixData) {
$array2 = Functions::flattenArray($matrixData);
$count = count($array2);
if ($wrkCellCount != $count) {
return Functions::VALUE();
}
foreach ($array2 as $i => $val) {
if ((!is_numeric($val)) || (is_string($val))) {
$val = 0;
}
$wrkArray[$i] *= $val;
}
}
return array_sum($wrkArray);
}
}