/**
* Adds leading zeros if necessary to the unscaled value to represent the full decimal number.
*
* @return string
*/
private function getUnscaledValueWithLeadingZeros()
{
$value = (string) $this->intVal;
$targetLength = $this->scale + 1;
$negative = $this->intVal->isNegative();
$length = strlen($value);
if ($negative) {
--$length;
}
if ($length >= $targetLength) {
return $value;
}
if ($negative) {
$value = substr($value, 1);
}
$value = str_pad($value, $targetLength, '0', STR_PAD_LEFT);
if ($negative) {
$value = '-' . $value;
}
return $value;
}
