Publish posts using Blogger API in PHP

This is how to create a blogpost using the Google Client Library for PHP.

To setup:

1. Go to https://console.developers.google.com
2. Add an project, and tap "Credentials"
3. Tap "Create data" and create an Client-ID OAuth
4. Choose the "Webapp" and enter the path to your server in the "Authorized diversion URIs" textbox
5. Hit "Create", and hit OK
6. Click on the Client-ID you just generated
7. Click "Download JSON"
8. Download the file, and rename it to client_secret.json

Use this script to create and publish posts. Make sure to first enter the path to your client_secret.json.

<?php
// This script creates a post
// Made by Robin Boers

// load Google Api
require_once '../api/vendor/autoload.php';

session_start();

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

// Authenticate user with OAuth 
$client = new Google_Client();
$client->setAuthConfig('/path/to/client_secret.json');
$client->setApplicationName('Example App');
$client->setRedirectUri($redirect_uri);
$client->setScopes(array('https://www.googleapis.com/auth/blogger')); 

if (!isset($_SESSION['access_token']) && isset($_GET['code'])) {
    $client->authenticate($_GET['code']);
    $access_token = $client->getAccessToken();
    $_SESSION['access_token'] = $access_token;
}

if (isset($_SESSION['access_token']) && $_SESSION['access_token']) {
    
    // First set the accesstoken
    $client->setAccessToken($_SESSION['access_token']);

    $blogger = new Google_Service_Blogger($client);

    // Get blog information
    $blog = $blogger->blogs->getByUrl('http://stupidstuffwastaken.blogspot.com'); // Replace this URI with your blog's URI
    $blogId = $blog->getId();
    $blogName  = $blog->getName();

    $postId = "651261343944639929"; // If you want to update a post

     // Creating post
     $mypost = new Google_Service_Blogger_Post();
     $mypost->setTitle("Example heading");
     $mypost->setContent("Lorem ipsum dolor sit amet, consectetur adipiscing elit.");

     $data = $blogger->posts->insert($blogId, $mypost); // or update post like this: $data = $blogger->posts->update($blogId, $postId, $mypost);
     var_dump($data);
}
?>