Developer
<?php
namespace PhpOffice\PhpSpreadsheet\Calculation\MathTrig;
use PhpOffice\PhpSpreadsheet\Calculation\Exception;
use PhpOffice\PhpSpreadsheet\Calculation\Functions;
use PhpOffice\PhpSpreadsheet\Calculation\Information\ExcelError;
class Gcd
{
/**
* Recursively determine GCD.
*
* Returns the greatest common divisor of a series of numbers.
* The greatest common divisor is the largest integer that divides both
* number1 and number2 without a remainder.
*
* Excel Function:
* GCD(number1[,number2[, ...]])
*
* @param float|int $a
* @param float|int $b
*
* @return float|int
*/
private static function evaluateGCD($a, $b)
{
return $b ? self::evaluateGCD($b, $a % $b) : $a;
}
/**
* GCD.
*
* Returns the greatest common divisor of a series of numbers.
* The greatest common divisor is the largest integer that divides both
* number1 and number2 without a remainder.
*
* Excel Function:
* GCD(number1[,number2[, ...]])
*
* @param mixed ...$args Data values
*
* @return float|int|string Greatest Common Divisor, or a string containing an error
*/
public static function evaluate(...$args)
{
try {
$arrayArgs = [];
foreach (Functions::flattenArray($args) as $value1) {
if ($value1 !== null) {
$value = Helpers::validateNumericNullSubstitution($value1, 1);
Helpers::validateNotNegative($value);
$arrayArgs[] = (int) $value;
}
}
} catch (Exception $e) {
return $e->getMessage();
}
if (count($arrayArgs) <= 0) {
return ExcelError::VALUE();
}
$gcd = (int) array_pop($arrayArgs);
do {
$gcd = self::evaluateGCD($gcd, (int) array_pop($arrayArgs));
} while (!empty($arrayArgs));
return $gcd;
}
}
Developer
To ensure a smooth integration process and optimal performance, follow these best practices: