Agenda

Workshop Day

Friday

October 26, 2018

09:00	Registration of workshop participants
09:30	Registration of workshop participants
10:00	Building a scalable distributed websocket architecture with PHP (part I) James Mallison Building a scalable distributed websocket architecture with PHP (part I) James Mallison PHP was never designed for long running processes and this causes problems for the modern world of programming where developers want to consume streams of data in realtime. HTTP/2 solves some problems with Server-Sent Events but it still does not solve the problem of efficient bidirectional communication. In this tutorial you will learn about Event-Driven Programming and how to create the foundations of a WebSocket application with React. Then we will move onto more advanced concepts such as removing blocking code with AMQP leading to the creation of a scalable and distributed WebSocket architecture built with PHP and associated technologies.	Tactical DDD Practices applied to Doctrine 2 Projects (part I) Marco Pivetta Tactical DDD Practices applied to Doctrine 2 Projects (part I) Marco Pivetta In this full day of hands-on coding we will approach development with Doctrine ORM from a tactical DDD perspective. We will start from a minimal specification, exploring yet-to-be-discovered business scenarios in a rich domain, how to plan features, how to isolate them into workable units, implement them in a framework-less environment and finally test them effectively. We'll freshen up some DB design done "domain-first", looking at the possible performance issues, how to mitigate them on the long run and how to provide an optimal data model for both writes and reads without sacrificing valuable abstractions in the domain logic. At the end of the day, you will have a good overview of how to attack relational DB abstractions, when to optimise for business interactions, and how to optimise for read interactions.	Full-Text Search Internals Philipp Krenn Full-Text Search Internals Philipp Krenn Today’s applications are expected to provide powerful full-text search. But how does that work in general and how do I implement it on my site or in my application? Actually, this is not as hard as it sounds at first. This talk covers: * How full-text search works in general and what the differences to databases are. * How the score or quality of a search result is calculated. * How to handle languages, search for terms and phrases, run boolean queries, add suggestions, work with ngrams, and more with Elasticsearch. We will run all the queries live and explore the possibilities for your use-case.
10:30
11:00
11:30
12:00			Aspect-Oriented Paradigm in PHP with Go! AOP Alexander Lisachenko Aspect-Oriented Paradigm in PHP with Go! AOP Alexander Lisachenko Have you already mastered you object-oriented skills? Want to practice something new and interesting? I have a special tutorial for you and it will teach you new programming paradigm called AOP (Aspect-Oriented Programming)! In this tutorial we will review general terms and rules of this paradigm, then we continue with practical part and will use the Go! AOP framework for our demo application. We will learn different pointcut types for method interception, class initialization, property access and apply them to our code. Last hour we will use for learning AOP patterns like caching, logging and much more.
12:30
13:00
13:30
14:00	Lunch
14:30	Lunch
15:00	Building a scalable distributed websocket architecture with PHP (part II) James Mallison Building a scalable distributed websocket architecture with PHP (part II) James Mallison PHP was never designed for long running processes and this causes problems for the modern world of programming where developers want to consume streams of data in realtime. HTTP/2 solves some problems with Server-Sent Events but it still does not solve the problem of efficient bidirectional communication. In this tutorial you will learn about Event-Driven Programming and how to create the foundations of a WebSocket application with React. Then we will move onto more advanced concepts such as removing blocking code with AMQP leading to the creation of a scalable and distributed WebSocket architecture built with PHP and associated technologies.	Tactical DDD Practices applied to Doctrine 2 Projects (part II) Marco Pivetta Tactical DDD Practices applied to Doctrine 2 Projects (part II) Marco Pivetta In this full day of hands-on coding we will approach development with Doctrine ORM from a tactical DDD perspective. We will start from a minimal specification, exploring yet-to-be-discovered business scenarios in a rich domain, how to plan features, how to isolate them into workable units, implement them in a framework-less environment and finally test them effectively. We'll freshen up some DB design done "domain-first", looking at the possible performance issues, how to mitigate them on the long run and how to provide an optimal data model for both writes and reads without sacrificing valuable abstractions in the domain logic. At the end of the day, you will have a good overview of how to attack relational DB abstractions, when to optimise for business interactions, and how to optimise for read interactions.	GraphQL Server in PHP with Symfony Flex Renato mefi GraphQL Server in PHP with Symfony Flex Renato mefi "GraphQL represents a massive leap forward for API development." says GitHub. What can we do with it in PHP? This workshop will show you from the basic setup of your GraphQL Server with Symfony, possibly teach you some tricks on Symfony Flex and then start exploring a lot of the powers of GraphQL, handling a more complex schema, treating performance, security and versioning (Schema deprecation), if in time we'll also check some cool tech using promises to fetch data and get a grasp on how to avoid the n+1 issue on APIs. If you're an API developer this workshop might change your way of thinking about it!
15:30
16:00
16:30
17:00
17:30
18:00
18:30

Conference Days

Saturday

October 27, 2018

	Relaxing	Intermediate	Geek
08:00	Registration & check-in
08:15
08:30
08:45
09:00	Official opening
09:15	Keynote: 12 years in the life of elephpant Damien Seguy Keynote: 12 years in the life of elephpant Damien Seguy The last ones who told me I could learn from a plush toy were my daughters. Of course, I acknowledged. Yet, it dawned on me : after ten years of life, the PHP plush has achieved so much ! It went to the White House and Antarctica ; it spawned forty thousands offsprings and a jet-set generation of collectors ; it built bridges within and outside the community. Nowadays, it is alive and kicking. It still reviews my code, casting an odd look to me, once in while. No one can have enough elephpant.
09:30
09:45
10:00	Good Project From Scratch Paweł Lewtak Good Project From Scratch Paweł Lewtak Can you start a new project from scratch instead of maintaining legacy one? You're the lucky one! I want to talk how a good project should look like, from analysis phase till release and later maintenance. Talk will mostly about signaling important things to focus on like requirements analysis, code structure, code review, TDD, continuous integration, monitoring, performance tests etc. I don't want to go in-depth on every one of them but give you hints what is important and what to read more about and in which direction you should make research if you want to improve your skills, have a better project and be calm during next project release. During the talk I'll go through each phase of project lifetime and say what you as a developer should do on each of them to limit the possibility of ending up with legacy code.	How I learned to Stop Wiring and Love Autowiring Containers Beau Simensen How I learned to Stop Wiring and Love Autowiring Containers Beau Simensen Does managing YAML, XML or PHP container configurations make you sad? Do you dread making changes to your classes’ dependencies for fear of the inevitable container configuration wiring blues? Life doesn’t have to be this way! Not if your container supports autowiring, that is. Hear one developer’s journey into the wild world of containers, learn how autowiring works, and find out how using autowiring can free you from having to manually configure every dependency.	Image classification in PHP using neural networks Karol Przybyszewski Image classification in PHP using neural networks Karol Przybyszewski Image processing using neural networks is one of the hottest topics related to artificial intelligence. During the lecture I will show the basics of neural networks on the example of recognizing hand-written numbers. In order to accurately show the mechanisms of neural networks, the code used is written in 'pure' PHP, without the use of external libraries.
10:15
10:30
10:45
11:00	Coffee break
11:15	Coffee break
11:30	Dependency Injection and Dependency Inversion in PHP James Mallison Dependency Injection and Dependency Inversion in PHP James Mallison Dependency Injection and Dependency Inversion are important tools for writing testable and reusable code. They are available in any object oriented language and PHP is no exception. In this talk we will look at both Dependency Injection and the Dependency Inversion Principle, how they fit in with SOLID, and why they should be used when writing object oriented code. How are objects wired together? What is an object graph? Is a Dependency Injection Container the right way forward? Can we do this automatically, and are there any patterns or reusable components available to help us achieve reusable and decoupled code? These are some of the topics covered in this talk from both a theoretical and a practical standpoint. Walking out of the room you should understand why dependency injection is so heavily advocated in programming and how you can use it to write awesome, decoupled code in PHP.	Profiling PHP Sebastian Grodzicki Profiling PHP Sebastian Grodzicki You cannot improve what you cannot measure. That's why profiling applications should always be the first step before trying to improve its performance. Learn how to spot your applications' bottlenecks and how to adopt profiling into your developer pipeline.	Contributing to PHP's Core Gabriel Caruso Contributing to PHP's Core Gabriel Caruso Even wanted to contribute to PHP's Core? This is your time! From tests to a new function, PHP is open for new contributors. Fixing bugs, document things, cleanups, refactorings, or even new small functions. In this talk, we're gonna see how the `is_countable` function was made, and what we can learn from that.
11:45
12:00
12:15
12:30	Get Rolling Fast with Symfony Flex Beau Simensen Get Rolling Fast with Symfony Flex Beau Simensen Unsure where to start with your next application? Are you sure you want full stack Symfony eventually but not sure you can commit to the extra work upfront? Afraid if you start with a micro-framework like Silex you’ll end up needing to migrate to full stack Symfony anyway? Enter Symfony Flex. Symfony flex brings all of the power of full stack Symfony with the upfront requirements of a micro-framework. Choosing Symfony upfront not longer commits you to the overhead you might expect from a traditional Symfony project. See how quickly a new project can be started and how it can evolve over time.	How Doctrine caching can skyrocket your application Jachim Coudenys How Doctrine caching can skyrocket your application Jachim Coudenys When people talk about Doctrine (or any ORM for that matter), the performance issue always comes up fairly quickly. Besides the fact that Doctrine will help you develop faster, so a little overhead doesn’t really matter, there are numerous options to increase the performance of the application. By understanding how the system works in the first place, a lot of issues can be avoided right away. When you have done everything to avoid these pitfalls, you can bring in the big guns: caching. Doctrine has different caching mechanism and since Doctrine 2.5 “Second Level Cache” was added to our toolbox. After this talk, you should know what the impact is of every cache and how to use it.	Refactoring the Domain Guided by Tests Pim Elshoff Refactoring the Domain Guided by Tests Pim Elshoff There once was a model quite scenic Many lines but wholly anemic New features requested But nothing was tested The burdened developer feels sick Legacy code is code that makes money, as they saying goes. But we have an opportunity to refactor when tickets and feature requests come in. How are we going to make sure we don't break things? Using a test first approach we will turn this dumb data container into a rich and meaningful domain model. This gives us the confidence to tackle new challenges, without fear of regression. We will create a safe path forward guided by test driven development and new feature requests only. If you know a bit about tests but don't know how to get started in your own code base, then this is the talk for you.
12:45
13:00
13:15
13:30	Lunch
13:45
14:00
14:15
14:30	Rasmus' talk
14:45
15:00
15:15
15:30	How to create chatbot in PHP (and why)? Adam Matysiak How to create chatbot in PHP (and why)? Adam Matysiak Why create chatbots? What can you do with them? How to start? What are the possibilities with Messenger? Live coding	Nuclear powered software security Christopher Riley Nuclear powered software security Christopher Riley It seems to be almost a weekly occurrence that another company makes the news headlines for being hacked and in the process disclosing sensitive user data and company secrets. These security meltdowns can cause catastrophic effects to the company in lost user trust and huge costs putting things right. A nuclear power plant is considered one of the most dangerous things mankind has built, yet they very rarely go wrong. The systems engineering that goes into making nuclear power plants safe is a fascinating topic to study but on the surface it seems entirely irrelevant to PHP developers. In this talk I'm going to show you how this level of safety is achieved, what happens when it goes wrong and then see what lessons we, as PHP developers, can learn from it to help us secure our applications from meltdown.	Total Recall - The application that never forgets Holger Woltersdorf Total Recall - The application that never forgets Holger Woltersdorf Building an application upon CQRS and Event Sourcing offers three pretty nice benefits. Well structured code and business logic, separated by read and write concerns. The source of truth - A reliable and recoverable view into the past of your application state. The opportunity to answer future questions that you don't know about today. This talk explains the good fit of two combined application architecture approaches applied to a well known real world example. It shows how to tackle some pitfalls, gives practical advices on infrastructure and exemplifies the aforementioned benefits.
15:45
16:00
16:15
16:30	Docker for "dummies" Jakub Kluvánek Docker for "dummies" Jakub Kluvánek co je to docker? pro jaké případy ho použít? k čemu je docker-compose co jsou volumes? jak funguje v dockeru networking? praktické ukázky Přednáška je určena všem, kdo Docker "tak trochu" používají, ale mají v tom guláš a potřebují si vyjasnit některé pojmy.	Symfony Messenger: Queues, workers, and much more! Samuel ROZE Symfony Messenger: Queues, workers, and much more! Samuel ROZE Symfony 4.1 comes with a new Component: Messenger. It drastically simplifies the use of message buses and handling asynchronous operations using message queues such as RabbitMq. In this talk, I will introduce you to this component and show you how to get started with it.	Proactive web security Bastian Hofmann Proactive web security Bastian Hofmann Keeping your web application secure and free from vulnerabilities is hard work, even if you know the OWASP Top 10. In this talk I will show tools, best practices and patterns to help you with this, so that you can find security issues before an attacker does and even prevent them in the first place.
16:45
17:00	You Still Upgrade Your Application to Major Versions Manually? Tomas Votruba You Still Upgrade Your Application to Major Versions Manually? Tomas Votruba Before composer we downloaded packages manually, one by one. Now we do it in composer update. That way you'll update a dependency from Symfony 3.0 to Symfony 4.0. How do you fix BC breaks in your code? Manually, one change after another, file by file. In non-PHP world, lazy Google and Facebook folks automated such work with tools. What about PHP? With AST from nikic/php-parser this is now possible in PHP as well. I'll show you how Rector can handle 80% of boring upgrades for you. I can help with Symfony, Sylius, Twig, Nette, Doctrine and PHPUnit code.
17:15
17:30	Coffee break
17:45	Coffee break
18:00	Tracy: an addictive tool to ease debugging David Grudl Tracy: an addictive tool to ease debugging David Grudl Tracy is a tool designed to facilitate debugging PHP code. It is a useful assistant to all everyday PHP programmers which helps with clearly visualizing and logging errors, dumping variables and a lot more. If you are meeting Tracy for the first time, believe me, your life will be split into the era before the Tracy and the one with her. I'll show you useful features like debugging an AJAX request or automatically fixing typos in your code with a single click.	Introducing CQRS into Legacy Code Stefan Priebsch Introducing CQRS into Legacy Code Stefan Priebsch Getter methods retrieve state, while setter methods change state. We all know that. HTTP GET requests retrieve state, while HTTP POST requests change state. We all know that. Then why have we built so many applications with a single object model, blatantly ignoring this separation? Turns out that creating a separate model for reading and writing makes a lot of sense. But how can we introduce this concept into legacy applications? This presentation shows how to do it, and what is in it for you.	PHPStan Under the Hood Jan Tvrdík PHPStan Under the Hood Jan Tvrdík PHPStan is popular tool for analyzing PHP code that can help you greatly reduce the number of bugs in your code. Have you ever wondered how analysis of dynamic, gradually typed languages such as PHP is done? In this talk we're going to explore how PHPStan internally models many aspects of PHP language. We're going to have a close look at PHPStan's type system. How does it model both simple and complex types. How types are combined together and how such combinations can be used to model many dynamic aspects of PHP language or how they allow us to do reliable dead code detection. I'll introduce the concept of trinary logic and how it allows PHPStan to support both legacy and modern code bases. We're also going to have a look at type guards. How they work. What they can and what they currently cannot do. And I'll show you how it all fits together to create a working system.
18:15
18:30	Using migrations and fixtures Miro Svrtan Using migrations and fixtures Miro Svrtan Manually adding data to our development environment is tedious and boring, not being sure on what changes will be applied to production database after deployment can be dangerous. To battle this issues, developers decided to load gigabytes of production data on their machines or run queries manually before or after deployment. In the world of crazy fast changes, working with more and more team mates and on more complex projects, automation and reliabilty are becoming a must have. Fixtures will give you opportunity to have small yet relevant data set so you dont have to import production data or enter testing data into the system your self, every time system changes. By using migrations we can easily transfer database changes amongst the team and get the confidence on the changes that will be applied to staging/production. In my case, both concepts helped communicate changes better and allowed us to modify the system with more confidence and at a faster pace. While some popular frameworks and ORM's dont ship with fixtures or migrations support by default, there are great extensions to provide this. I will showcase ones for Symfony and Doctrine but talk is more about their concepts and not the implementations.
18:45
19:00	Platinum Sponsor's talk Platinum Sponsor's talk This slot is inentionally reserved for sponsored talk.	Natural Language Understanding meets PHP Maximilian Berghoff Natural Language Understanding meets PHP Maximilian Berghoff To build a PHP Skill for your Alexa Skill Server is easy at the moment, cause there are lots of tutorials. But what about NLU. NLU is Natural Language Understanding, which means Lerning and Understaning Konverstations. There are several provides to serve NLU, but none of them keeps the data in your hands. But what to do if you do not like to share your data with the NSA? I found a solution, which we use to enrich our chat bot with some inteligence. As we used to know mashine learning that tool is writen in Python. If you do not whant to learn an other language, we can go through the API by implementing an PHP Adapter. That means: at the end we will have a little PHP library to get in touch with NLU. A library to train a conversation model to or to get sorted intents, whith sorted entities carrying the important of our conversation.	Minimize the framework and allow yourself some DDD Milko Kosturkov Minimize the framework and allow yourself some DDD Milko Kosturkov By now we've all heard what Domain Driven Design is about. Some of us have actually tried it. When we did, we stumbled upon the fact that the frameworks we use do not help us a lot with shaping our code in a domain driven manner. Actually, they were in the way. DDD and the generic MVC frameworks we use are an oxymoron. Still, we don't want to loose all the sweet tools that help us deal with the HTTP and the Console. In this talk I'll tell you how we changed our view perspective on input/output/request/response, pushed the framework in the infrastructure corner and cleaned ourselves some space for sweet DDD.
19:15
19:30
19:45
20:00	Dinner
20:15
20:30
20:45
21:00	After-party
21:15
21:30
21:45
22:00
22:15
22:30
22:45
23:00
23:15
23:30
23:45

Sunday

October 28, 2018

	Relaxing	Intermediate	Geek
09:00	When testing makes no sense Miro Svrtan When testing makes no sense Miro Svrtan If you look at the stage of any conference in the PHP world, people are preaching testing,testing,testing ... If you on the other hand look at the community, the percentage of people writing tests is really low. As a person who went from 'How can I ask for more time/money/resources for testing?' through 'ask for forgiveness instead of permission', to person who writes tests a lot, I still believe testing doesn't make sense. No, it doesnt make sense for all and everyone, often enough it makes no sense for me too. This talk will explore that fuzzy line when you have to shift your mind from one side to the other: in both directions.	MONOREPO: How We Started to Save Our Developers Time Petr Heinz MONOREPO: How We Started to Save Our Developers Time Petr Heinz The development of multiple repositories is not always an easy task. If you want to offer a high-quality and evolving application, sooner or later, there is a need to make the same changes in several packages. This can be a simple change in the documentation of a few packages or the adoption of new coding standards. During the development of Shopsys Framework, we have come to the point where thousands of hours were allocated for development across multiple repositories and for development of new packages. And it was this moment when we decided to choose the way of monorepo. Upgrade several packages to a new version of PHPUnit? Why not! Change of method in API used across multiple packages? Super easy! Of course, monorepo is not for everyone. We will show you, why it can be useful to use monorepo and what was the way to the monorepo in Shopsys Framework.	Running PHP applications on .NET Core Ben Fistein Running PHP applications on .NET Core Ben Fistein At iolevel, we are developing Peachpie, the modern PHP compiler and runtime for .NET and .NET Core, sponsored by the .NET Foundation. Peachpie is a complete re-implementation of the entire PHP runtime and libraries in C# and is capable of running entire real world applications on .NET, such as WordPress, Symfony or MediaWiki. The goal of the project is to allow developers to combine the simplicity and ease of development of PHP with the performance, stability and security of .NET.
09:15
09:30
09:45
10:00	The Creative Developer Renato mefi The Creative Developer Renato mefi Imagine you have to do a simple REST API including 3 endpoints, but in one day, is it ok? Such a small question but with many things into it, it's a cognitive trap, you are evaluating how much you can achieve in a day, your experience with APIs, the tools, the risks and much more things. Your brain has to work a lot to give certain answers, many times without considering all factors. This talk introduces you to the cognitive biases world, exemplified by a developer's life, creating awareness you could be able to avoid many issues in your career!	Beyond Documentation With OpenAPI Boyan Yordanov Beyond Documentation With OpenAPI Boyan Yordanov Imagine a world where the mobile development team is not constantly surprised by changing endpoints, where frontend developers don’t abuse your carefully crafted APIs and we don’t have to go back again and again to fix or change stuff. In this imaginary land we are able to leave the guesswork out by using API definitions to produce even better designs and automate parts of the process. Together we will explore OpenAPI as a standard way to describe APIs and see how it can help us get there.	Strict programming in PHP Gabriel Caruso Strict programming in PHP Gabriel Caruso This talk will address several points in our codes that we can improve it to make it more stringent, avoiding false positives, points that have not been tested and have actually written code that complies with our business rules, avoiding unnecessary bugs. We will work with PHP 7 types, the identical operator, weak comparison functions and counters, and more.
10:15
10:30	JSON API: Možná nepotřebujete GraphQL Ondřej Machulda JSON API: Možná nepotřebujete GraphQL Ondřej Machulda Možná jste v poslední době slyšeli o GraphQL. Je tedy opravdu čas opustit REST API, jak někteří tvrdí? Myslím, že zdaleka ne - a chtěl bych vám ukázat existující alternativu pro vytváření dobrých REST API - standard JSON API, okolo kterého se rozvíjí zajímavý ekosystém i v PHP.		Should Shiny JWT Tokens Replace Sessions? Grzegorz Skorupa Should Shiny JWT Tokens Replace Sessions? Grzegorz Skorupa OAuth 2.0 allows one to centralize user authentication. JWT tokens allow for signed-in user data to be kept client side, hence no server side session storage is required. The conjunction of both seems to have gained a lot of interest in recent years. During the talk I will introduce you to OAuth 2.0 flows and JWT tokens internals. I will show how those can be used to authenticate and manage user sessions in mobile and modern web applications. I will present the challenges we faced when implementing authentication using OAuth 2.0 flows with JWT tokens in a large PHP based application. We shall try to compare Token based mechanisms to well known PHP server side sessions. I hope to answer the question: Is it worth switching from session mechanism to OAuth 2.0 flow with JWT tokens?
10:45
11:00	Coffee break
11:15	Coffee break
11:30	Vim pre PHP, PHP pre Vim Miroslav Šedivý Vim pre PHP, PHP pre Vim Miroslav Šedivý Čím píšeš zdrojáky PHP, konfiguráciu, dokumentáciu, slajdy, blog, knihy či e-maily? Jedným mozgom, jedným párom rúk, jednou klávesnicu, ale odlišným rozložením klávesnice pre každý jazyk a odlišným textovým editorom pre každý účel? A nie je to škoda? Používaš IDE na prácu s PHP kódom, potom prepneš do e-mailového klienta, otvoríš iný editor pre dokumentáciu a nakoniec sa cez ssh pripojíš na vzdialený server a upravuješ konfiguračný súbor cez konzolu? Píšeš v slovenčine, češtine, poľštine, maďarčine, angličtine a v nemčine, prípadne v iných európskych jazykoch a "příliš žluťoučký kůň" Ti znie lepšie ako jeho ASCII podoba? Ukážem Ti, ako pohodlne píšem v niekoľkých jazykoch na štandardnej americkej klávesnici. Ukážem Ti, ako používam jediný editor na všetkých mojich počítačoch na vytváranie najrôznejších textov a prečo by si aj Ty mal ovládať jeden výkonný textový editor, či už je to Emacs alebo Vim. A ukážem Ti, ako využiješ svoje zručnosti v PHP na elegantné kúzla s textom. Dva Tvoje základné nástroje sú klávesnica a textový editor. Dostať ich do krvi sa oplatí.	Modern SQL: Evolution of a dinosaur Markus Winand Modern SQL: Evolution of a dinosaur Markus Winand SQL has evolved considerably in recent years. The purely relational dogma was already abandoned in 1999. What followed was continuous extension through the incorporation of handy features to address problems that are hard to solve with relational algebra. Today, SQL is Turing complete, can process graphs, has semantic understanding of XML and JSON, is able to automatically keep historic versions, can analyze time series using regular expressions and much more. This session walks through the SQL standards from 1999 to the current version of 2016. It demonstrates some selected features on the basis of common problems and compares the traditional SQL-92 solution to the modern SQL approach. Of course, the presentation also shows how long these features are supported by various databases so that you immediately know whether the shown solutions work in your environment or not. Teaser: MySQL and MariaDB have got huge updated lately. In this session, developers and software architects of all levels gain a better understanding where SQL is today so that they are able to make more educated decisions. A lot has happened since SQL-92!	Serveless PHP applications Matthieu Napoli Serveless PHP applications Matthieu Napoli Serverless and its "functions as a service" promise us cheap and scalable applications. What is it like in reality? And how to merge the mature PHP ecosystem with these new architectures and tools? Where do HTTP and CLI applications fit in all this? How about Symfony, Laravel or PSR-15? Let's explore those questions and illustrate the answers with a few case studies and "Bref", a solution for deploying PHP applications on serverless providers.
11:45
12:00
12:15
12:30	How we are switching whole system and keep system stable Ľuboš Beran How we are switching whole system and keep system stable Ľuboš Beran Try to imagine, that you have multi-million company, which product code is as bad as it can be, and you are fighting with challenge to create new system based on Symfony without down time, with continues integration and you want to be able to run both systems same time. Now stop imagine and come to my talk! :-) I will tell you how we started, what changes was necessary to be done, and how we fucked up many times in this process.	Cracking passwords, or why use password_hash() Michal Špaček Cracking passwords, or why use password_hash() Michal Špaček Do not use MD5 to hash user passwords! Do not use SHA-x! Yeah, but why? I'll show you, donut worry. We'll talk about password cracking, what are the speeds, how passwords are cracked on GPUs, and of course how to defend against cracking. As an example, I'll use a recent data leak where 750k plaintext passwords have surfaced from a site that supposedly used MD5. We'll also explain what a salt is and what it's not, and that it's not there to prevent cracking, and that's fine. Eventually, I'll explain what slow hashes like bcrypt or Argon2 are and how to use them in PHP. Let's get cracking!	Of representation and interpretation: A unified theory Arnout Boks Of representation and interpretation: A unified theory Arnout Boks Many hard problems in programming originate from one single source: not properly distinguishing the representation of data from the way it is interpreted. Have you ever written code that filters `$_GET` for SQL injection attempts? Struggled with timezones? Tried to get escaping right for Javascript in HTML? Detected the character encoding of a string? All are examples of this one problem. In this talk we will look at some examples of the representation-interpretation problem and find the general pattern behind it. We will see how primitive types make it so hard for us to get this right, and how we can use value objects to steer us in the right direction. You’ll start finding many more examples of this pattern and understand them more easily.
12:45
13:00
13:15
13:30	Closing keynote: “Writing code that lasts” … or writing code you won’t hate tomorrow. Rafael Dohms Closing keynote: “Writing code that lasts” … or writing code you won’t hate tomorrow. Rafael Dohms As developers we write code everyday, only to frown at it a week after that. Why do we have such a hard time with code written by others and ourselves, this raging desire to rewrite everything we see? Writing code that survives the test of time and self judgment is a matter of clarity and simplicity. Let's talk about growing, learning and improving our code with calisthenics, readability and good design.
13:45
14:00
14:15
14:30	Closing remarks
14:45	Closing remarks

Speakers

Ľuboš Beran

Factcool

Ľuboš Beran

Factcool

Young and passionate Head of IT in one of the fastest growing e-commerce companies in Europe, called Factcool. Experiences with super fast growing of company, scaling, agile development and processing huge amount of data. Speaker (ShowIT, MS Fest...), Team leader, basically manager & developer in one person.
Maximilian Berghoff

Herr

Maximilian Berghoff

Herr

I work as a developer for the Mayflower GmbH in Würzburg. As such I develop highly professional php and javascript applications. I invest my free time in contributing to the Symfony CMF (Content Management Framework). Besides I am dad of two lovely sons and enjoy reading and watching Game of Thrones.
Arnout Boks

Moxio

Arnout Boks

Moxio

Software architect by profession but mathematician by education, Arnout has his interests on the boundary between the two, where formal modelling and logical reasoning meet practical problems and pragmatism. He works at Moxio, where he solves complex information management problems with innovative software, and aims to grow a culture of learning and quality. In his free time he contributes to a number of open source projects, like PHP-CPD, PHP_CodeSniffer and Symfony, and more recently the PHP core.
Gabriel Caruso

Leroy Merlin

Gabriel Caruso

Leroy Merlin

Gabriel had his first contact with programming in high school, what motivated him to recreate the whole website of it. A while ago has known Github and discovered the open-source software world. Since then, is what he has been doing for the community: contributing and helping to code a better world. Has passions in tests, automation tools, AST, PHP Internals, stickers, to talk and many more.
Jachim Coudenys

Combell Group

Jachim Coudenys

Combell Group

Jachim Coudenys is a PHP developer at Combell. Since discovering PHP in 2002 (4.1.0), his work and after-work activities brought him from the world of development to server management, development workflows, more development, etc... Next to being a long-time member of PHPBenelux, he is co-organizer the PHP-WVL, a user group in West Flanders (BE). He is a Zend Certified developer and Certified MongoDB Developer & DBA. You can follow him on http://twitter.com/coudenysj and read his occasional blog posts on http://blog.jachim.be.
Rafael Dohms

Usabilla

Rafael Dohms

Usabilla

A graduated Computer Engineer, Rafael Dohms has vast experience in the PHP ecosystem as a Developer, Speaker and Contributor. Addicted in building communities he has founded various groups where ever he lives, currently he is to blame for AmsterdamPHP. Developer by career but teacher by vocation he travels the world sharing interest in quality code, innovation and building careers. In his free time you will likely find him gaming or contributing to open source projects. His contribution hit list includes many projects, from PHP itself to frameworks like Symfony, Zend and projects such as Doctrine and Composer. His hobby is mentoring new Speakers that eventually take speaking slots away from him in future events, a strategy he still thinks is not very smart. Not one to listen to himself he keeps mentoring and suggesting developers everywhere create their own User Groups to grow their networks and knowledge.
Pim Elshoff

Procurios

Pim Elshoff

Procurios

I've been a developer-for-hire for over a decade and a professional developer any time soon now. With over half that time spent working with scrum at Procurios, the agile mindset has really clicked for me. Technology will always be a passion of mine, but with more experience my focus has shifted to people. I'm enthusiastic, I've got a loud mouth and I'm professionally stubborn.
Ben Fistein

iolevel

Ben Fistein

iolevel

API & Third Party Manager at CSOB by day, Co-founder and CEO of iolevel by night. Double Master's degree with summa cum laude distinction from the University of Economics, Prague and a BS in Marketing from FSU. Expertise in management, tech entrepreneurship, venture capital, project management and sales. I most enjoy being on the edge between IT and business.
Sebastian Grodzicki

SHOWROOM
David Grudl

David Grudl

I am a software and open source developer. I started programming in the DOS era, now I am focused solely on web-based applications in PHP. And when I do not program, I write blogs, train web application development, or run Spartan Race :-) https://davidgrudl.com
Petr Heinz

Shopsys s.r.o.

Petr Heinz

Shopsys s.r.o.

Petr was fascinated by computers and programming from an early age and started freelancing as a PHP programmer since 18 years old. Loves clean code, regular expressions and clever design. In 2011 he joined Shopsys, built several e-commerce solutions since then and shared his experience on PHP conferences across Europe. He dedicated last years to developing the Shopsys Framework, open source e-commerce framework made with passion on Symfony 3.4.
Bastian Hofmann

SysEleven

Bastian Hofmann

SysEleven

Bastian is a System Engineer at SysEleven, a full-service hosting company, where he focuses on bringing the power Kubernetes to its customers. Before that he was caring about performance, monitoring, web-security and developer productivity at ResearchGate, the social network for researchers and scientists. When he is not developing stuff or looking at graphs, he likes to cycle, do Yoga, go to beer gardens and frequently speaks at international conferences on software architecture, scaling web applications and open standards and protocols.
Jakub Kluvánek

Bidding Fox technologies s.r.o.

Jakub Kluvánek

Bidding Fox technologies s.r.o.

Pracuju na biddingovém nástroji Bidding Fox, kde mám na starosti backend aplikace se spoustou dat z různých zdrojů.
Milko Kosturkov

KiboIT

Milko Kosturkov

KiboIT

I've been a professional Web/PHP developer for more than 12 years. Throughout my career I've dealt with a big range of types of projects - multimedia, games, television specific systems, cms-es, web-sites, SMS services, etc. During this time I got a bachelors degree in electronics and am about to get my master's in IT. When programing I am keen on clean design and code and modeling the world around us instead of focusing on tech. As such, my work passion is creating new products. Also, I am a rock star (in hiatus) - like, in a band and singing (in clubs). So a real one!
Philipp Krenn

Elastic

Philipp Krenn

Elastic

Philipp is part of the infrastructure team and a developer advocate at Elastic. He is frequently talking about full-text search, databases, operations, and security. Additionally, he is organizing multiple meetups in Vienna.
Paweł Lewtak

GOG.com

Paweł Lewtak

GOG.com

Developer with 9 years of experience with backend systems. Created them from scratch by starting with analysis and writing specification up to deployment on production. Working mainly with PHP and MySQL but also with Python, elastic search and other technologies. Big fan and evangelist of continuous learning, organizer of many coding dojo sessions.
Alexander Lisachenko

Alpari

Alexander Lisachenko

Alpari

Alexander is working at Alpari (RU), one of the biggest FX Broker, as the Head of Software Architecture. He is author and project leader of the open-source [aspect-oriented framework Go! AOP](https://github.com/goaop/framework) and also a passionate FOSS PHP developer, speaker at conferences, guru in Enterprise Architecture. He likes to discuss complex systems and have a strong knowledge in computer science, electronics and of course in PHP. He likes to bring cutting-edge IT solutions to non-technical businesses for optimizing processes and solving complex issues. His slogan is: nothing is impossible if you put your mind to it.
Ondřej Machulda

LMC s. r. o.

Ondřej Machulda

LMC s. r. o.

Ondrej is a web developer who is friends with blue elephants and penguins. He works as a PHP Developer and QA Engineer for LMC, a company behind the biggest Czech job portal Jobs.cz, and is also experienced trainer of Selenium & PHPUnit & QA topics. He is co-maintainer of Selenium PHP bindings (facebook/php-webdriver) and Steward testing tool. Ondrej is gaining new ideas at meetings of Prague PHP and Symfony community that he helps to organise.
James Mallison

trivago

James Mallison

trivago

James is a technical lead at trivago and has worked extensively in Software Development, Technical and Software Architecture and more recently Technical Leadership across multiple industries including Advertising, E-commerce and Travel. Having previously automated an entire government department as a University student, given talks on downloading completely legal torrents and streaming their metadata over Websockets, and now with regular contributions to open-source, James is technically opinionated and cares about Software Craftsmanship and doing things the right way. James shares his knowledge hoping to continue the cycle with the developers on his team and in the company he works for, and he has spoken on SOLID principles, Object Oriented Design, Software Architecture and Realtime Communication at conferences around the world.
Adam Matysiak

HighSolutions Sp. z o.o.

Adam Matysiak

HighSolutions Sp. z o.o.

I am CEO and CTO in HighSolutions, software house from Poznań, Poland. I have 7 years experience of managing company and conduct hundreds of projects in that time from analysis, through project management and coding to quality control. Now I am specializing in chatbots.
Renato mefi

usabilla

Renato mefi

usabilla

Renato is a developer who loves Linux, web and beautiful code, tries to mix technologies with some inspiration during his work in order to have creative and reliable solutions. Also thinks the eclectic interest is a must to be able to find those solutions.
Matthieu Napoli

Matthieu Napoli

Matthieu has been developing web applications for more than 10 years. He is the author of [PHP-DI](http://php-di.org/), [Silly](https://github.com/mnapoli/silly), [Couscous](http://couscous.io/) and [Bref](https://github.com/mnapoli/bref). He loves working on topics related to code quality and developer experience: anything that makes our job easier. He is also passionate about framework interoperability and is involved in the [PHP-FIG](http://www.php-fig.org/) on PSR-11 and PSR-15.
Marco Pivetta

Roave

Marco Pivetta

Roave

I'm a consultant, obstinate open-source maintainer and mentor. I help pushing forward Doctrine, ZendFramework and Roave PHP packages, as well as new and better practices in the community at large.
Stefan Priebsch

thePHP.cc

Stefan Priebsch

thePHP.cc

Even older digital watches would outperform Stefan Priebsch's first computer. He has been an IT consultant for over 20 years, holds an academic degree in computer science, is the author of several textbooks, and a university lecturer on professional web development. He presents and keynotes at technology conferences around the world. As Co-Founder and Principal Consultant of The PHP Consulting Company (thePHP.cc), Stefan helps his clients to develop software successfully. He spends his free time playing electric guitar and researching agile home improvement.
Karol Przybyszewski

Incepton

Karol Przybyszewski

Incepton

My PHP adventure started with versions 3/4 and for over 10 years I was actively programming for both frontend and backend applications for large corporations. After a few-year break in programming, I became interested in the subject of image processing and the use of neural networks for this purpose.
Christopher Riley

Imhotek Consulting

Christopher Riley

Imhotek Consulting

Chris is a freelance consultant based in York, Uk with experience working in the public sector, small and large companies throughout North Yorkshire. Chris has over 10 years experience with PHP and has a keen focus on both software architecture and none functional requirements such as security, performance and maintainability. In his free time, Chris can often be found producing or playing with experimental libraries and contributing to Zend framework.
Samuel ROZE

Kamet Ventures

Samuel ROZE

Kamet Ventures

Passionate about products creation and innovation, Samuel is Tech Lead in Residence in the London startup studio Kamet to help each venture to deliver the best. Core team member of Symfony and ApiPlatform, creator of ContinuousPipe and Tolerance, he is particularly involved in open-source technologies.
Miroslav Šedivý

UBIMET GmbH

Miroslav Šedivý

UBIMET GmbH

Senior Software Architect at UBIMET GmbH. Born in Czechoslovakia, studied in France, living in Germany. Coded in PHP before it was cool. Using Python to make the sun shine and the wind blow.
Damien Seguy

Exakat

Damien Seguy

Exakat

Damien Seguy is CTO at Exakat Ltd., a company specialized in PHP code quality solutions for the industry. He leads the development of the exakat PHP static analysis engine, that automatically audit code for version compatibility, security and dead code. Since last milenium, Damien has contributed to PHP, as documentation author, elephpant breeder, conference UFO on all continents. He also enjoys machine learning, gremlin, 狮子头 and camembert.
Beau Simensen

beausimensen.com

Beau Simensen

beausimensen.com

Beau Simensen ([@beausimensen](https://twitter.com/beausimensen), [beausimensen.com](beausimensen.com)) has been a professional polyglot programmer since 1998. He is a Technology Strategy Consultant, Technical Product Manager for Blackfire ([@blackfireio](https://twitter.com/blackfireio), [blackfire.io](https://blackfire.io)), and is co-host of That Podcast ([@thatpodcast](https://twitter.com/thatpodcast), [thatpodcast.io](http://thatpodcast.io)). An active open-sourcer, he created Sculpin ([sculpin.io](https://sculpin.io)) and helped create Stack PHP ([stackphp.com](http://stackphp.com)). He is also a serving Core Comitte member for the PHP Framework Interoperability Group (PHP-FIG) ([php-fig.org](http://php-fig.org)).
Grzegorz Skorupa

Intive

Grzegorz Skorupa

Intive

Developer, System Analyst and Software Architect. Works with PHP for more than 10 years. He gained experience in many small and large projects. He also has a PhD in Computer Science. He has spent recent years developing large-scale microservice based system at Intive. He still believes that failure-free and useful computer system is possible. He constantly seeks for solutions that enhance and guarantee quality.
Michal Špaček

Michal Špaček

Michal is a software developer and an application security engineer who's on a mission to show developers how & why to write secure code. He started building web sites and apps during the "First browser war" when "Best viewed in Netscape" logos were still a thing. Michal has worked for small and big, local and multinational, and is working on [Report URI](https://report-uri.com), the browser reporting service. Michal runs trainings and workshops for developers and managers alike, speaks regularly at various conferences including Passwords/BSides Las Vegas, and if you google QNKCDZO - that's a password he's generated to showcase a particular PHP feature. https://www.michalspacek.com
Miro Svrtan

Null Development

Miro Svrtan

Null Development

Veteran of PHP affairs, BDD practitioner, devops enthusiast I started using PHP as a student, back in 1999. At first I worked as a one man band web developer and from there I progressed, via focusing on PHP development in a team environment, to be a senior dev, tech lead & technical analyst. I found much more happiness doing backend stuff so I focus on scalable backends and devops tasks this days.
Jan Tvrdík

Jan Tvrdík

Jan Tvrdík is an experienced PHP developer from Prague. He loves tools that improve developer productivity, especially when such tools are open-source. He published and contributes to various open-source projects such as PHPStan, Nextras Migration or Mango Tester.
Tomas Votruba

Péhápkaři

Tomas Votruba

Péhápkaři

Tomas loves PHP and connecting people, so he founded Czech & Slovak PHP Community [Pehapkari](https://pehapkari.cz) in 2015, where all PHP developers can share their knowledge, chat on Slack or grab a beer. His **passion is open-source for lazy people** - instant upgrades and coding standards. He takes care of [Rector](https://github.com/rectorphp/rector) and [EasyCodingStandard](https://github.com/Symplify/EasyCodingStandard) packages.
Markus Winand

winand.at

Markus Winand

winand.at

Markus Winand is an independent author, trainer and consultant on all things SQL. His book “SQL Performance Explained” has just been translated into a fifth language. It can be purchased as a print edition, and it’s also available to read for free on his use-the-index-luke.com website. Markus is currently working on his second book centered on the idea that things have changed a lot since SQL-92. It is likewise available free of charge online (modern-sql.com).
Holger Woltersdorf

Fortuneglobe GmbH

Holger Woltersdorf

Fortuneglobe GmbH

CIO - Head of FORTUNE SOLUTIONS at [Fortuneglobe GmbH](http://www.fortuneglobe.com). About 12 years of developer and team-lead experience in mobile communication and fashion eCommerce industry. PHP developer for more than 17 years, Co-founder and chairman of the PHP USERGROUP DRESDEN e.V., avid meetup and conference speaker, core-developer of the open-source PHP framework "IceHawk", dedicated to multiple other PHP open-source projects.
Boyan Yordanov

Boyan Yordanov

I am a developer and my day to day work involves mostly PHP and JavaScript with some Ruby and devops work here and there. When I don't write code I try to be as involved in the community as possible. I organize the local PHP user group PHP Varna, support the local hackerspace and other user groups in the city.