AWS Lambda PHP Hello World

The basics of using Serverless Framework for AWS Lambda PHP applications.

Notes

1. Install Serverless Framework globally by following the Quick Start
2. Install Composer following these instructions
3. Install Composer dependencies via ./bin/composer.phar install
4. Set up your AWS credentials
5. Write your serverless application (!) - the default is in src/hello.handler.php
6. Run sls deploy to deploy to Lambda
7. Run sls invoke -f hello -l to invoke your function

PHP handler function signature

The signature for the PHP function is:

function main($event) : array

Hello world looks like:

<?php
function hello($event) : array
{
    return ["msg" => "Hello from PHP " . PHP_VERSION];
}