libphonenumber\PhoneNumber::__toString PHP Method

    public function __toString()
    {
        $outputString = '';
        $outputString .= 'Country Code: ' . $this->countryCode;
        $outputString .= ' National Number: ' . $this->nationalNumber;
        if ($this->hasItalianLeadingZero()) {
            $outputString .= ' Leading Zero(s): true';
        }
        if ($this->hasNumberOfLeadingZeros()) {
            $outputString .= ' Number of leading zeros: ' . $this->numberOfLeadingZeros;
        }
        if ($this->hasExtension()) {
            $outputString .= ' Extension: ' . $this->extension;
        }
        if ($this->hasCountryCodeSource()) {
            $outputString .= ' Country Code Source: ' . $this->countryCodeSource;
        }
        if ($this->hasPreferredDomesticCarrierCode()) {
            $outputString .= ' Preferred Domestic Carrier Code: ' . $this->preferredDomesticCarrierCode;
        }
        return $outputString;
    }

 /**
  * {@inheritdoc}
  */
 public function __toString()
 {
     return parent::__toString();
 }