create-sheet-php.php

<?php
try {

      $sSpreadsheetID = '16nfqj7V3Z4r2q4fHmiLXxmph5Ji-4Jw1BPGzYjTz3Kk';
      $gclient = new \Google_Client();
      $gclient->setApplicationName('Bluebot Google Sheets API PHP');
      $gclient->setScopes(\Google_Service_Sheets::SPREADSHEETS);
      $gclient->setAuthConfig(__DIR__.'/bluetext-adcce8c14228.json');
      $gclient->setAccessType('offline');
      $service = new \Google_Service_sheets($gclient);

      $sheet_name = 'test123';

      $body = new Google_Service_Sheets_BatchUpdateSpreadsheetRequest(array(
          'requests' => array(
              'addSheet' => array(
                  'properties' => array(
                      'title' => $sheet_name
                  )
              )
          )
      ));
      $result1 = $service->spreadsheets->batchUpdate($sSpreadsheetID,$body);
  } catch(Exception $ignore) {}