Are there any best practices for incorporating Google App Engine (GAE) into a PHP website for backend functionality?

To incorporate Google App Engine (GAE) into a PHP website for backend functionality, it is recommended to use the Google Cloud Client Library for PHP. This library provides easy-to-use APIs for interacting with various Google Cloud services, including App Engine. By utilizing this library, you can easily integrate GAE features such as data storage, authentication, and task queues into your PHP website.

require 'vendor/autoload.php';

use Google\Cloud\Datastore\DatastoreClient;

// Instantiates a client
$datastore = new DatastoreClient();

// Example code to interact with Datastore
$query = $datastore->query()
    ->kind('Task')
    ->filter('done', '=', false)
    ->order('created');

$tasks = $datastore->runQuery($query);

foreach ($tasks as $task) {
    echo 'Task: ' . $task['description'] . PHP_EOL;
}