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<?php
namespace PhpOffice\PhpSpreadsheet\Calculation\LookupRef;
use PhpOffice\PhpSpreadsheet\Calculation\ArrayEnabled;
use PhpOffice\PhpSpreadsheet\Calculation\Functions;
use PhpOffice\PhpSpreadsheet\Calculation\Information\ExcelError;
class Selection
{
use ArrayEnabled;
/**
* CHOOSE.
*
* Uses lookup_value to return a value from the list of value arguments.
* Use CHOOSE to select one of up to 254 values based on the lookup_value.
*
* Excel Function:
* =CHOOSE(index_num, value1, [value2], ...)
*
* @param mixed $chosenEntry The entry to select from the list (indexed from 1)
* @param mixed ...$chooseArgs Data values
*
* @return mixed The selected value
*/
public static function choose($chosenEntry, ...$chooseArgs)
{
if (is_array($chosenEntry)) {
return self::evaluateArrayArgumentsSubset([self::class, __FUNCTION__], 1, $chosenEntry, ...$chooseArgs);
}
$entryCount = count($chooseArgs) - 1;
if (is_numeric($chosenEntry)) {
--$chosenEntry;
} else {
return ExcelError::VALUE();
}
$chosenEntry = floor($chosenEntry);
if (($chosenEntry < 0) || ($chosenEntry > $entryCount)) {
return ExcelError::VALUE();
}
if (is_array($chooseArgs[$chosenEntry])) {
return Functions::flattenArray($chooseArgs[$chosenEntry]);
}
return $chooseArgs[$chosenEntry];
}
}
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