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<?php |
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namespace PhpOffice\PhpSpreadsheet\Calculation\MathTrig; |
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use PhpOffice\PhpSpreadsheet\Calculation\ArrayEnabled; |
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use PhpOffice\PhpSpreadsheet\Calculation\Exception; |
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class Trunc |
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{ |
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use ArrayEnabled; |
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/** |
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* TRUNC. |
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* |
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* Truncates value to the number of fractional digits by number_digits. |
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* This will probably not be the precise result in the unlikely |
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* event that the number of digits to the left of the decimal |
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* plus the number of digits to the right exceeds PHP_FLOAT_DIG |
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* (or possibly that value minus 1). |
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* Excel is unlikely to do any better. |
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* |
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* @param array|float $value Or can be an array of values |
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* @param array|int $digits Or can be an array of values |
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* |
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* @return array|float|string Truncated value, or a string containing an error |
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* If an array of numbers is passed as an argument, then the returned result will also be an array |
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* with the same dimensions |
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*/ |
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public static function evaluate(array|float|string|null $value = 0, array|int|string $digits = 0): array|float|string |
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{ |
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if (is_array($value) || is_array($digits)) { |
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return self::evaluateArrayArguments([self::class, __FUNCTION__], $value, $digits); |
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} |
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try { |
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$value = Helpers::validateNumericNullBool($value); |
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$digits = Helpers::validateNumericNullSubstitution($digits, null); |
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} catch (Exception $e) { |
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return $e->getMessage(); |
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} |
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if ($value == 0) { |
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return $value; |
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} |
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if ($value >= 0) { |
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$minusSign = ''; |
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} else { |
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$minusSign = '-'; |
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$value = -$value; |
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} |
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$digits = (int) floor($digits); |
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if ($digits < 0) { |
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$power = (int) (10 ** -$digits); |
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$result = intdiv((int) floor($value), $power) * $power; |
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return ($minusSign === '') ? $result : -$result; |
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} |
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$decimals = PHP_FLOAT_DIG - strlen((string) (int) $value); |
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$resultString = ($decimals < 0) ? sprintf('%F', $value) : sprintf('%.' . $decimals . 'F', $value); |
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$regExp = '/([.]\\d{' . $digits . '})\\d+$/'; |
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$result = $minusSign . (preg_replace($regExp, '$1', $resultString) ?? $resultString); |
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return (float) $result; |
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} |
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} |
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PHPOffice /
PhpSpreadsheet
