
This code shows how your server can reply with a text message using the Twilio helper library. When your Twilio phone number receives an incoming message, Twilio will send an HTTP request to your server. Your application performs whatever logic you feel necessary - read/write from a database, integrate with another API or perform some computation - then replies to Twilio with a TwiML response with the instructions you want Twilio to perform. They will make an HTTP request to a URI that you provide to Twilio. Whichever framework and language you choose, webhooks function the same for every Twilio application.

PHP has its own web app framework built in, although frameworks like Laravel, Symfony and Yii are also popular. Examples across languages include ASP.NET MVC for C#, Servlets and Spark for Java, Express for Node.js, Django and Flask for Python, and Rails and Sinatra for Ruby. Almost all server-side programming languages offer some framework for you to do this. To handle a webhook, you only need to build a small web application that can accept the HTTP requests. When that event occurs, Twilio makes an HTTP request (usually a POST or a GET) to the URL configured for the webhook. They are usually triggered by some event, such as receiving an SMS message or an incoming phone call. Webhooks are user-defined HTTP callbacks. Twilio Conversations for two-way messaging Looking for the WhatsApp Business API with Twilio? Upgrading Starter Brands to Standard Brands

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