What are some common pitfalls when working with the Google Tag Manager API in PHP?

One common pitfall when working with the Google Tag Manager API in PHP is not properly handling authentication. It's important to generate and use OAuth 2.0 credentials to authenticate your requests to the API. Additionally, make sure to handle errors and exceptions gracefully to avoid unexpected behavior.

// Authenticate with Google Tag Manager API using OAuth 2.0 credentials
$client = new Google_Client();
$client->setAuthConfig('credentials.json');
$client->setAccessType('offline');
$client->setApprovalPrompt('force');
$client->setScopes(['https://www.googleapis.com/auth/tagmanager.edit.containers']);

// Handle errors and exceptions gracefully
try {
    // Make API requests here
} catch (Google_Service_Exception $e) {
    echo 'Error: ' . $e->getMessage();
} catch (Google_Exception $e) {
    echo 'Error: ' . $e->getMessage();
}