“致命错误：在使用Oauth2.0身份验证和Google Contact API for PHP时未找到类'Google_Http_Request'

Question

I am trying to retrieve all my contacts using Google Contact API. For this I used Oauth2.0 authentication and Google Contact API for PHP.

But i am getting this error: "Fatal error: Class 'Google_Http_Request' not found in"

could not get the reason why. I even used Google_HttpRequest but error remains the same but this time it is for "Google_HttpRequest".

Code used is as follows, can some one help because for this this there no help is available on internet

<?php
//require_once 'C:/xampp/htdocs/google-api-php-client-master/src/Google/Client.php';

require_once 'C:/xampp/htdocs/google-api-php-client-master/vendor/autoload.php';// or wherever autoload.php is located
session_start();
//Declare your Google Client ID, Google Client secret and Google redirect uri in  php variables
$google_client_id = 'xxx-yyy.apps.googleusercontent.com';
$google_client_secret = 'xxxx';
$google_redirect_uri = 'https://localhost:4433/xxx.php';
$client = new Google_Client();
$client -> setApplicationName('My application name');
$client -> setClientid($google_client_id);
$client -> setClientSecret($google_client_secret);
$client -> setRedirectUri($google_redirect_uri);
$client -> setAccessType('online');

$client->setApplicationName('Google Contacts PHP Sample');

$client->setScopes("http://www.google.com/m8/feeds/");

///if (isset($_GET['code'])) {

/// $client->authenticate($_GET['code']);

/// $auth_code = $_GET["code"];

/// $_SESSION['google_code'] = $auth_code;

/// header('Location: ' . $google_redirect_uri);

///}

if (isset($_GET['code'])) {
$client->authenticate($_GET['code']);
$_SESSION['token'] = $client->getAccessToken();
$redirect = 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF'];
header('Location: ' . filter_var($redirect, FILTER_SANITIZE_URL));
}

if (isset($_SESSION['token'])) {
$client->setAccessToken($_SESSION['token']);
}
if (isset($_REQUEST['logout'])) {
unset($_SESSION['token']);
$client->revokeToken();
}

if ($client->getAccessToken()) {
//$req = new Google_Http_Request("https://www.google.com/m8/feeds/contacts/default/full", 'GET', null, null);   
$req = new Google_Http_Request("https://www.google.com/m8/feeds/contacts/default/full");
$val = $client->getIo()->authenticatedRequest($req);



// The contacts api only returns XML responses.
$response = json_encode(simplexml_load_string($val->getResponseBody()));
print "<pre>" . print_r(json_decode($response, true), true) . "</pre>";

// The access token may have been updated lazily.
$_SESSION['token'] = $client->getAccessToken();
} else {
$auth = $client->createAuthUrl();
}

if (isset($auth)) {
print "<a class=login href='$auth'>Connect Me!</a>";
} else {
print "<a class=logout href='?logout'>Logout</a>";
}

Answer 1

You are trying to mix things that cant be mixed.

The current Google php client library which you are using only supports discovery service APIs. Which are the new APIs that return Json.

The google contacts API is an older Gdata api which returns XML. the two do not speak the same language. I haven't tried it but the old GData client library can be found here.