PHP & Friends devroom @ FOSDEM 2019
2 Feb 2019 at ULB - Campus Solbosch

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So you did a great job with your website and now your customers want to get into contact with you. They actually want give you their holy grail and apply for a login. And that's where it usually starts to go south. So many things can go wrong with a registration form that your customer doesn't really feel welcome or safe. In this session we will debug a few real-life examples from a user-experience Point of View. By analysing that we will find ways to make the first contact of a user with our application a better experience. And you don't need to be a coder to see why and how to improve your next registration form.

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Help my client is complaining some parts of the application are slow. Now what? Profiling! What is profiling and how can we measure the performance of our application? There are several tools we can use. Once we have the tools, how do we approach profiling. What to look for. And caveats to avoid when profiling. To finish up, we should avoid that our client is complaining about performance, how can we pro actively use profiling to improve our application. When finished we will end up with a nice toolbox of profiling tools and good ideas how to do profiling and avoid some common mistakes that might distract you from the real optimisation.

Webhooks are the natural evolution of modern applications beyond using APIs to integrate between systems. This talk will showcase the webhook examples you're already familiar with, and show you how to handle these features in your own applications. In an increasingly connected world, APIs are key to great tools and effective workflows. What is better than an API? A webhook of course! Webhooks are the modern way for integrating systems and allowing them to react to one another. This session will cover what a webhook is, when you might want to use one, and some examples for handling webhooks in your own PHP projects. You'll see some examples of tools to help during the development process, and some real examples of webhooks in action.

"Serverless" is the one hot topic of the past years. "Serverless functions" can be incredibly useful and supported by all major cloud providers. I want to compare this to the beginnings of PHP and how we can do very similar things with low effort and without any super fancy tools. "Serverless functions" are basically "functions as a service". But what makes this so special? And why did PHP do most of this from it's beginning? I want to show how things worked when I started with PHP >10 years ago and how similar this was to todays "serverless functions". How you can easily create specific endpoints that do one specific thing, without writing a single line of code that handles routing. Even without writing a single line of configuration. "Serverless functions" are something bold and awesome and new and fancy, but they are not es special as they might look on first sight. The talk is supposed to be entertaining. I don't want to talk people into using "functions as a service" or into not using them. But it might be interesting to know where things came from and that PHP might have inspired this whole development of the past years.

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There are many approaches to execute PHP sub-tasks asynchronously or to parallelise PHP execution. While some solutions require extra extensions, individual PHP builds or a lot of process control management, this talk will show you how to configure and use the built-in PHP FastCGI Process Manager (php-fpm) to execute requests asynchronously in an isolated, tunable process pool and eventually handle their responses in a reactive way.