Developer
<?php
namespace PhpOffice\PhpSpreadsheet\Calculation\MathTrig;
use PhpOffice\PhpSpreadsheet\Calculation\ArrayEnabled;
use PhpOffice\PhpSpreadsheet\Calculation\Exception;
class Sign
{
use ArrayEnabled;
/**
* SIGN.
*
* Determines the sign of a number. Returns 1 if the number is positive, zero (0)
* if the number is 0, and -1 if the number is negative.
*
* @param array|float $number Number to round, or can be an array of numbers
*
* @return array|int|string sign value, or a string containing an error
* If an array of numbers is passed as the argument, then the returned result will also be an array
* with the same dimensions
*/
public static function evaluate($number)
{
if (is_array($number)) {
return self::evaluateSingleArgumentArray([self::class, __FUNCTION__], $number);
}
try {
$number = Helpers::validateNumericNullBool($number);
} catch (Exception $e) {
return $e->getMessage();
}
return Helpers::returnSign($number);
}
}
Developer
To ensure a smooth integration process and optimal performance, follow these best practices: