Impossible to connect to smtp.gmail.com

Hello
I used your example and I can't connect to my google smtp, and no error is written it is empty

$smtp->host_name="smtp.gmail.com";
$smtp->host_port=465;
$smtp->ssl=1;
$smtp->socks_host_name = '';
$smtp->socks_host_port = 1080;
$smtp->socks_version = '5';

$smtp->start_tls=0;
$smtp->cryptographic_method = STREAM_CRYPTO_METHOD_TLS_CLIENT;
$smtp->localhost="localhost";
$smtp->direct_delivery=0;
$smtp->timeout=10;
$smtp->data_timeout=0;
$smtp->debug=1;
$smtp->html_debug=0;
$smtp->pop3_auth_host="";
$smtp->user="myuser";
$smtp->realm="";
$smtp->password="mypassword";
$smtp->workstation="";
$smtp->authentication_mechanism="";

I also tried with start_tls but nothing better, changed the port too...nothing is working
have you an idea about my error?
thanks