This application demonstrates how to set up logging on App Engine Standard for PHP 7.2. It also demonstrates how different log levels are handled.

To set up logging in your App Engine PHP 7.2 application, simply follow these two steps:

1. Install the Google Cloud Logging client library

   composer require google/cloud-logging

2. Create a PSR-3-compatible logger object

   use Google\Cloud\Logging\LoggingClient;
   // Create a PSR-3-Compatible logger
   $logger = LoggingClient::psrBatchLogger('app');

Now you can happily log anything you'd like, and they will show up on console.cloud.google.com/logs:

// Log messages with varying log levels.
$logger->info('This will show up as log level INFO');
$logger->warning('This will show up as log level WARNING');
$logger->error('This will show up as log level ERROR');

• Install composer
• Install dependencies by running:

  composer install

• Install the Google Cloud SDK.

Deploy the samples by doing the following:

gcloud config set project YOUR_PROJECT_ID
gcloud app deploy
gcloud app browse

The last command will open https://{YOUR_PROJECT_ID}.appspot.com/ in your browser. Browse to / to send in some logs.

Run the sample locally using PHP's build-in web server:

# export environemnt variables locally which are set by App Engine when deployed
export GOOGLE_APPLICATION_CREDENTIALS=/path/to/credentials.json
export GOOGLE_CLOUD_PROJECT=YOUR_PROJECT_ID

# Run PHP's built-in web server
php -S localhost:8000

Browse to localhost:8000 to send in the logs.

Note: These logs will show up under the Global resource since you are not actually sending these from App Engine.