PHP at Scale. The speakers will be discussing using PHP in high volume environments, the choices people made and why the made them.

The role of data science is becoming more prominent as the big data web emerges. This talk introduces the role of the data scientist and how data mining techniques are being applied, some using PHP. We are not talking application data but about creating new “... value from the data itself, … it’s a data product.” to quote the, O'Reilly Radar Report: What is Data Science?

Data touches everything. Understanding it all is the biggest problem out there to solve. Data crosses all industries, all parts of a business and all that makes up life. The future web is about finding answers, discoveries, stitching together sources, busting data silos to release the next level of collective wisdom for society.

This talk will set the scene of the big data web, share Data Scientist case studies and take a hands on look at text data mining code.

When we have an idea, it's tempting to dive headfirst into coding it and making it real. This is a great skill set that we have, but it can potentially harm our dream of building a great web site or a cool app; it is very easy to solve the wrong problem. Worse still, you might not find out that you've built an impractical solution until after you have invested a lot of time and passion into an idea doomed to fail.

In this session, we will explore how we can get closer to the problem we ought to solve, and get a better idea who our potential customers might be. or users We will look at some user experience design (UX) tools and activities that help us refine objectives, pave the way for making decisions, and determine the shape of a minimum viable product—before we need to write a single line of code.

The principles of abstraction are drilled into us repeatedly, and we work hard to abstract the layers of our applications. Abstraction between layers is excellent, but what about abstraction within layers, especially the data layer? Many developers still build database-centric applications, and then struggle the day they need an additional or new data source. Learn the reasons why this is a poor design choice, and the best ways to avoid it.

Many services / applications now a day are ill equipped with handling a sudden rush of popularity, as is often the case on the internet now a days, to a point where the services either become unavailable or unbearably slow.

By taking a chapter from the ant colonies in the wild, where their strength lies in their numbers and the fact that everyone works together towards the same goal, we can apply the same principle to our service by using systems such as

- load balancers
- message queues
- gearman
- memcache
- daemons

and a few others, you can achieve greater performance, more redundancy, higher availability and have the ability to scale your services up and down as required easily.

During this talk attendees will be lead through the world of distributed systems and scalability, and shown the how, where and what, of how to take the average application and splitting it into smaller more manageable pieces.

An introduction to using MongoDB with PHP. Introducing MongoDB and why it’s a good match for PHP and instructing on basic schema design in MongoDB. Demonstrating how to connect to the database, perform CRUD operations and perform queries. Finally, summarize the community tools and libraries available in PHP and why one would use them.

At the BBC we are preparing for the some big events in the coming year (the Olympics amongst them), as we don't have to cash to splash on new hardware in the current economic climate and our frozen license fee.

The BBC runs approximate 300 websites all contained with bbc.co.uk and running on the same hardware. This means that a spike in traffic on /weather affects /iplayer and all other sites hosted on our platform.

This talk will show some of the things we've been doing to benchmark our platform (the PHP, ZF portion anyway) and highlight poor performing sections of our site and address them.

I will explain some of the tools we've written and technologies we've used to achieve this on a relatively short timescale with limited budget.

This will cover our experience of using XHProf for the first time and augmenting Zend Framework to generate HAR (Http Archive) format files to expose the service calls our platform makes and how we’ve approached optimising them.

Search is fast becoming the foundation for most modern web sites; users need to be able to find the product or information they want fast, accurately and have the capability to refine their search in variety of ways. This talk looks at a number of different Open Source search engines and provides an analysis on their ease of implementation, response times and capability to handle a variety of different data together with an overall feature comparison through a series of worked examples.

The beauty of PHP is that everybody can read the code and see the inner workings of software. But understanding concepts from reading code isn't often helpful, especially if you are not proficient in that language.

This presentation will take apart many parts of the PHP runtime, describe the concepts behind so attendees understand the inner workings without actually reading C code. Concepts covered include HashTables, the foundation for PHP arrays and many other internal data structures, the reference counting mechanism, which is important for writing efficient code as well as the overall executor.

The web is full of advice focused on improving performance. Before you can optimise however, you need to find out if your code is actually slow; then you need to understand the code; and then you need to find out what you can optimise.

This talk introduces various tools and concepts to find issues with your applications, and tools and concepts that help you optimise the your PHP applications.

At Etsy, we continuously deploy code. New features and bug fixes can go from development to production in 20 minutes. We have maintained this low barrier to deployment over the past year despite nearly doubling the number of people that can deploy.

Communication has a huge impact on the velocity of development and moving forward. We explicitly communicate over IRC, but we also evolve communication patterns through several other vectors, and one of those vectors is our Continuous Integration environment.

In this talk I will not only discuss how communication patterns at Etsy have evolved with our growing development team, but I will also elaborate on how team size, role composition, motivation, culture, and available tools sets can impact communication patterns and subsequently throughput.

When dealing with money online, fraud is an ongoing problem for both consumers and sellers. Researchers have been developing statistical and machine learning techniques to detect shady sellers on auction sites, spot fraudulent payments on e-commerce systems and catch click fraud on adverts. While there is no silver bullet, you will learn to flag suspicious activity and help protect your site from scammers using PHP and a little help from some other technologies.

Almost every developer has worked for a bad manager. A good manager is a pleasure to work for - a bad one can make your life a misery. In this session I will talk from the point of view of the 'misguided manager' - a manager who, with the best possible intentions, combines the worst of all management practice to make a developer's life complete hell.