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ariadna |
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<?php
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namespace PhpOffice\PhpSpreadsheet\Calculation\LookupRef;
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use PhpOffice\PhpSpreadsheet\Calculation\Information\ExcelError;
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class Filter
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{
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public static function filter(array $lookupArray, mixed $matchArray, mixed $ifEmpty = null): mixed
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{
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if (!is_array($matchArray)) {
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return ExcelError::VALUE();
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}
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$matchArray = self::enumerateArrayKeys($matchArray);
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$result = (Matrix::isColumnVector($matchArray))
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? self::filterByRow($lookupArray, $matchArray)
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: self::filterByColumn($lookupArray, $matchArray);
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if (empty($result)) {
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return $ifEmpty ?? ExcelError::CALC();
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}
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return array_values(array_map('array_values', $result));
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}
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private static function enumerateArrayKeys(array $sortArray): array
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{
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array_walk(
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$sortArray,
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function (&$columns): void {
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if (is_array($columns)) {
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$columns = array_values($columns);
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}
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}
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);
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return array_values($sortArray);
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}
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private static function filterByRow(array $lookupArray, array $matchArray): array
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{
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$matchArray = array_values(array_column($matchArray, 0)); // @phpstan-ignore-line
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return array_filter(
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array_values($lookupArray),
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fn ($index): bool => (bool) $matchArray[$index],
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ARRAY_FILTER_USE_KEY
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);
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}
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private static function filterByColumn(array $lookupArray, array $matchArray): array
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{
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$lookupArray = Matrix::transpose($lookupArray);
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if (count($matchArray) === 1) {
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$matchArray = array_pop($matchArray);
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}
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array_walk(
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$matchArray,
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function (&$value): void {
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$value = [$value];
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}
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);
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$result = self::filterByRow($lookupArray, $matchArray);
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return Matrix::transpose($result);
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}
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}
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