cek smtp

public function ceksmtp()
{
     $fp = fsockopen("www.google.com", 80, $errno, $errstr, 10); // work fine
    if (!$fp)
        echo "www.google.com -  $errstr   ($errno)<br>\n";
    else
        echo "www.google.com -  ok<br>\n";


    $fp = fsockopen("smtp.gmail.com", 465, $errno, $errstr, 10); // NOT work
    if (!$fp)
        echo "smtp.gmail.com 465  -  $errstr   ($errno)<br>\n";
    else
        echo "smtp.gmail.com 465 -  ok<br>\n";


    $fp = fsockopen("smtp.gmail.com", 587, $errno, $errstr, 10); // NOT work
    if (!$fp)
        echo "smtp.gmail.com 587  -  $errstr   ($errno)<br>\n";
    else
        echo "smtp.gmail.com 587 -  ok<br>\n";
}