code: protected function printLicenses(CompletePackageInterface $package)
      {
          $spdxLicenses = new SpdxLicenses();
  
          $licenses = $package->getLicense();
          $io = $this->getIO();
  
          foreach ($licenses as $licenseId) {
              $license = $spdxLicenses->getLicenseByIdentifier($licenseId); // keys: 0 fullname, 1 osi, 2 url
  
              if (!$license) {
                  $out = $licenseId;
              } else {
                  // is license OSI approved?
                  if ($license[1] === true) {
                      $out = sprintf('%s (%s) (OSI approved) %s', $license[0], $licenseId, $license[2]);
                  } else {
                      $out = sprintf('%s (%s) %s', $license[0], $licenseId, $license[2]);
                  }
              }
  
              $io->write('<info>license</info>  : ' . $out);
          }
      }
docs: Prints the licenses of a package with metadata
  
  @param CompletePackageInterface $package