Sample Function: PHP Numbers to Words

Introduction

This repository contains a sample function written in PHP. You can deploy it on DigitalOcean's App Platform as a Serverless Function component or as a standalone Function. Documentation is available at https://docs.digitalocean.com/products/functions.

Requirements

• You need a DigitalOcean account. If you don't already have one, you can sign up at https://cloud.digitalocean.com/registrations/new.
• To deploy from the command line, you will need the DigitalOcean doctl CLI.

Deploying the Function

# clone this repo
git clone git@github.com:digitalocean/sample-functions-php-numberstowords.git

# deploy the project, using a remote build so that compiled executable matched runtime environment
doctl serverless deploy sample-functions-php-numberstowords --remote-build

The output from the deploy command will resemble the following.

Deploying 'sample-functions-php-numberstowords'
  to namespace 'fn-...'
  on host '...'
Submitted function 'main/n2w' for remote building and deployment in runtime php:default (id: ...)
Deployment status recorded in 'sample-functions-php-numberstowords/.deployed'

Deployed functions ('doctl sls fn get <funcName> --url' for URL):
  - main/n2w

Using the Function

doctl serverless functions invoke main/n2w -p number:123
{
  "body": "one hundred and twenty-three"
}

You can use that API directly in your browser, with curl or with an API platform such as Postman. Parameters may be passed as query parameters, or as JSON body. Here are some examples using curl.

curl `doctl sls fn get main/n2w --url`?number=456

curl -H 'Content-Type: application/json' -d '{"number":"789"}' `doctl sls fn get main/n2w --url`

Project File Structure

• There is a single API implemented in ./packages/default/n2w.
• The required library is specified in ./packages/default/n2w/composer.json.
• There is a build.sh to install the required library during deployment.

Learn More

You can learn more about Functions by reading the Functions Documentation.