Base.php
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<?php
namespace PhpOffice\PhpSpreadsheet\Calculation\MathTrig;
use PhpOffice\PhpSpreadsheet\Calculation\Exception;
use PhpOffice\PhpSpreadsheet\Calculation\Functions;
class Base
{
/**
* BASE.
*
* Converts a number into a text representation with the given radix (base).
*
* Excel Function:
* BASE(Number, Radix [Min_length])
*
* @param mixed $number expect float
* @param mixed $radix expect float
* @param mixed $minLength expect int or null
*
* @return string the text representation with the given radix (base)
*/
public static function evaluate($number, $radix, $minLength = null)
{
try {
$number = (float) floor(Helpers::validateNumericNullBool($number));
$radix = (int) Helpers::validateNumericNullBool($radix);
} catch (Exception $e) {
return $e->getMessage();
}
$minLength = Functions::flattenSingleValue($minLength);
if ($minLength === null || is_numeric($minLength)) {
if ($number < 0 || $number >= 2 ** 53 || $radix < 2 || $radix > 36) {
return Functions::NAN(); // Numeric range constraints
}
$outcome = strtoupper((string) base_convert("$number", 10, $radix));
if ($minLength !== null) {
$outcome = str_pad($outcome, (int) $minLength, '0', STR_PAD_LEFT); // String padding
}
return $outcome;
}
return Functions::VALUE();
}
}