Google API v3 with PHP using Blogger service

It was really hard for me to understand how the Google APIs are working at the first point and took few days for me to figure out. But after a successful working prototype it seems very easy. And also when I am searching for a simple example I was unable to find a good one that I can understand.

So let me list down step by step what I have done with URLs and as simple as I can.

1. Create a Google app
1. location - https://code.google.com/apis/console
2. Switch on the "Blogger API v3"
3. Get the latest APIs client library for PHP
1. location - https://code.google.com/p/google-api-php-client/downloads/list
4. Upload the files to your host location on on localhost
5. Extract the files to folder  named "GoogleClientApi"
6. Create your php file outside of the folder 
7. Copy paste following code into the file and do the changes as needed 

By changing the scope and the service object you can access all the services that is given by Google APIs through the PHP API library set given.
If there is anything needed to be clarified please leave a comment.

<?php
session_start();
require_once dirname(__FILE__).'/GoogleClientApi/src/Google_Client.php';
require_once dirname(__FILE__).'/GoogleClientApi/src/contrib/Google_BloggerService.php';

$scriptUri = "http://".$_SERVER["HTTP_HOST"].$_SERVER['PHP_SELF'];

$client = new Google_Client();
$client->setAccessType('online'); // default: offline
$client->setApplicationName('giaws'); //name of the application
$client->setClientId('345345345645.apps.googleusercontent.com'); //insert your client id
$client->setClientSecret('JHJUGHJH6556vhjVHJKds'); //insert your client secret
$client->setRedirectUri($scriptUri); //redirects to same url
$client->setDeveloperKey('jhvjhhj6fvdfvfdv763248732QHGHJBHJ'); // API key (at bottom of page)
$client->setScopes(array('https://www.googleapis.com/auth/blogger')); //since we are going to use blogger services

$blogger = new Google_BloggerService($client);

if (isset($_GET['logout'])) { // logout: destroy token
    unset($_SESSION['token']);
 die('Logged out.');
}

if (isset($_GET['code'])) { // we received the positive auth callback, get the token and store it in session
    $client->authenticate();
    $_SESSION['token'] = $client->getAccessToken();
}

if (isset($_SESSION['token'])) { // extract token from session and configure client
    $token = $_SESSION['token'];
    $client->setAccessToken($token);
}

if (!$client->getAccessToken()) { // auth call to google
    $authUrl = $client->createAuthUrl();
    header("Location: ".$authUrl);
    die;
}
//you can get the data about the blog by getByUrl
$data = $blogger->blogs->getByUrl(array('url'=>'http://puwaruwa.blogspot.com/'));

//creates a post object
$mypost = new Google_Post();
$mypost->setTitle('this is a test 1 title');
$mypost->setContent('this is a test 1 content');

$data = $blogger->posts->insert('546547654776577', $mypost); //post id needs here - put your blogger blog id
 var_dump($data);
?>