ho provato di tutto ma questo è l'errore che ottengo:

Fatal error: Uncaught exception 'apiIOException' with message 'HTTP Error: (0) Proxy CONNECT aborted due to timeout' in /google-api-php-client/src/io/apiCurlIO.php:127 Stack trace: #0 /google-api-php-client/src/auth/apiOAuth2.php(93): apiCurlIO->makeRequest(Object(apiHttpRequest)) #1 /google-api-php-client/src/apiClient.php(138): apiOAuth2->authenticate(Array) #2 /3aroundweb_api_googleplus.php(25): apiClient->authenticate() #3 /index.php(5): api_googleplus->request_access_token() #4 {main} thrown in /google-api-php-client/src/io/apiCurlIO.php on line 127