问PHP Curl在localhost上不起作用吗？

EN

cURL support    enabled
cURL Information    7.20.0
Age 3
Features
AsynchDNS   No
Debug   No
GSS-Negotiate   No
IDN Yes
IPv6    Yes
Largefile   Yes
NTLM    Yes
SPNEGO  No
SSL Yes
SSPI    No
krb4    No
libz    Yes
CharConv    No
Protocols   dict, file, ftp, ftps, http, https, imap, imaps, ldap, pop3, pop3s, rtsp, smtp, smtps, telnet, tftp
Host    i386-apple-darwin8.11.1
SSL Version OpenSSL/0.9.7l
ZLib Version    1.2.3

$latlng = "44.3585230889,8.57745766643";
$lang = "it";
$geocodeURL = "http://maps.googleapis.com/maps/api/geocode/json?latlng=$latlng&sensor=false&language=$lang";

$ch = curl_init($geocodeURL);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$result = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);

if ($httpCode == 200) {
    $geocode = json_decode($result);

    $location   = $geocode->results[0]->address_components[0]->long_name;
    $city       = $geocode->results[0]->address_components[1]->long_name; 
    $province   = $geocode->results[0]->address_components[2]->long_name; 
    $region     = $geocode->results[0]->address_components[3]->long_name;
    $country    = $geocode->results[0]->address_components[4]->long_name;

    $geo_status = $geocode->status;     
    $geo_str    = "$location, $city, $province, $region, $country";
} else {
    $geo_status = "HTTP_FAIL_$httpCode";
    $geo_str    = "Failed: $geo_status";
}