/**
* Gets the national significant number of the a phone number. Note a national significant number
* doesn't contain a national prefix or any formatting.
*
* @param \libphonenumber\PhoneNumber $number the phone number for which the national significant number is needed
* @return string the national significant number of the PhoneNumber object passed in
*/
public function getNationalSignificantNumber(PhoneNumber $number)
{
// If leading zero(s) have been set, we prefix this now. Note this is not a national prefix.
$nationalNumber = '';
if ($number->isItalianLeadingZero()) {
$zeros = str_repeat('0', $number->getNumberOfLeadingZeros());
$nationalNumber .= $zeros;
}
$nationalNumber .= $number->getNationalNumber();
return $nationalNumber;
}