Mirror, mirror on the wall: Building a new PHP reflection library (DPC 2016)James Titcumb
Have you ever used PHP's built in reflection, only to find you can't do quite what you wanted? What about finding types for parameters or properties? What about reflecting on classes that aren't loaded, so that you can modify them directly?
Better Reflection is an awesome new library that uses magical time-warp techniques* (*actual magic or time-warp not guaranteed) to improve on PHP's built-in reflection by providing additional functionality. In this talk we'll cover what reflection is all about, explore the cool features of Better Reflection already implemented, the difficulties we faced actually writing the thing, and how you can use Better Reflection in your projects to maximise your reflection-fu.
“Use the right tool for the right job” is one of the first thing they teach you when you start out in these waters. I would make “Get to really know your tools” a second.
In this talk we’re going to work on the architecture of an app that showcases some common features/scenarios we all probably already have in the apps we’re working on: counters, leaderboards, queuing, timelines, caching. But this time we’ll implement them with Redis, making the apps much faster, your hardware (and you) much cooler, your boss (and the clients) much happier and hopefully your salary a bit higher.
PHP 8.0 comes with many long-awaited features: A just-in-time compiler, attributes, union types, and named arguments are just a small part of the list. As a major version, it also includes some backward-incompatible changes, which are centered around stricter error handling and enhanced type safety. Let's have an overview of the important changes in PHP 8.0 and how they might affect you!
Slides from the GTA-PHP meetup about the new features in PHP 7. Slides had corresponding RFC pages linked to them in the speaker notes, but they don't seem to correspond to pages here so I've made the original keynote file available at http://gtaphp.org/presentations/NewInPHP7.zip and a PowerPoint version at http://gtaphp.org/presentations/NewInPHP7.pptx.
Scaling Symfony2 apps with RabbitMQ - Symfony UK MeetupKacper Gunia
Slides from my talk at Symfony UK Meetup. London, 20 Aug 2014. http://twitter.com/cakper
Video: https://www.youtube.com/watch?v=cha92Og9M5A
More Domain-Driven Design related content at: https://domaincentric.net/
Mirror, mirror on the wall: Building a new PHP reflection library (DPC 2016)James Titcumb
Have you ever used PHP's built in reflection, only to find you can't do quite what you wanted? What about finding types for parameters or properties? What about reflecting on classes that aren't loaded, so that you can modify them directly?
Better Reflection is an awesome new library that uses magical time-warp techniques* (*actual magic or time-warp not guaranteed) to improve on PHP's built-in reflection by providing additional functionality. In this talk we'll cover what reflection is all about, explore the cool features of Better Reflection already implemented, the difficulties we faced actually writing the thing, and how you can use Better Reflection in your projects to maximise your reflection-fu.
“Use the right tool for the right job” is one of the first thing they teach you when you start out in these waters. I would make “Get to really know your tools” a second.
In this talk we’re going to work on the architecture of an app that showcases some common features/scenarios we all probably already have in the apps we’re working on: counters, leaderboards, queuing, timelines, caching. But this time we’ll implement them with Redis, making the apps much faster, your hardware (and you) much cooler, your boss (and the clients) much happier and hopefully your salary a bit higher.
PHP 8.0 comes with many long-awaited features: A just-in-time compiler, attributes, union types, and named arguments are just a small part of the list. As a major version, it also includes some backward-incompatible changes, which are centered around stricter error handling and enhanced type safety. Let's have an overview of the important changes in PHP 8.0 and how they might affect you!
Slides from the GTA-PHP meetup about the new features in PHP 7. Slides had corresponding RFC pages linked to them in the speaker notes, but they don't seem to correspond to pages here so I've made the original keynote file available at http://gtaphp.org/presentations/NewInPHP7.zip and a PowerPoint version at http://gtaphp.org/presentations/NewInPHP7.pptx.
Scaling Symfony2 apps with RabbitMQ - Symfony UK MeetupKacper Gunia
Slides from my talk at Symfony UK Meetup. London, 20 Aug 2014. http://twitter.com/cakper
Video: https://www.youtube.com/watch?v=cha92Og9M5A
More Domain-Driven Design related content at: https://domaincentric.net/
Video presentation: https://www.youtube.com/watch?v=jLAFXQ1Av50
Most applications written in Ruby are great, but also exists evil code applying WOP techniques. There are many workarounds in several programming languages, but in Ruby, when it happens, the proportion is bigger. It's very easy to write Ruby code with collateral damage.
You will see a collection of bad Ruby codes, with a description of how these codes affected negatively their applications and the solutions to fix and avoid them. Long classes, coupling, misapplication of OO, illegible code, tangled flows, naming issues and other things you can ever imagine are examples what you'll get.
Go beyond the documentation and explore some of what's possible if you stretch symfony to its limits. We will look at a number of aspects of symfony 1.4 and Doctrine 1.2 and tease out some powerful functionality you may not have expected to find, but will doubtless be able to use. Topics covered will include routing, forms, the config cache and record listeners. If you're comfortable in symfony and wondering what's next, this session is for you.
Slides from my talk at the GTA-PHP Meetup Group about getting mixed HTML / PHP code into objects using SOLID principles.
Meetup page: http://www.meetup.com/GTA-PHP-User-Group-Toronto/events/230656470/
Code is on github: https://github.com/zymsys/solid
Slides from presentation on PHP 5.5 Generators given to PHP Brighton group on 16th December 2013, and subsequently to the PHP Cambridge group on 22nd September 2014
Rich Model And Layered Architecture in SF2 ApplicationKirill Chebunin
Presentation for Symfony Camp UA 2012.
* What are Rich Model, Service Layer & Layered Architecture
* Layered architecture in Sf2 Application
* Integration with 3rd party bundles
Diving into HHVM Extensions (php[tek] 2016)James Titcumb
HHVM is quickly gaining popularity, and it is a pretty exciting time for PHP runtimes. Have you ever wondered what is going on beneath this slick, super-speedy engine? I wondered that myself, so I dived into the internals of HHVM, discovering a treasure trove of awesome stuff. In this talk, I will show you how HHVM works and how it all pieces together through a guided tour of the codebase. I will also show you a couple of ways to write your own incredible HHVM extensions.
PHP 8.1 brings Enums, one of the most requested features in PHP.
Enums, or Enumerations, allow creating strict and type-safe structures for fixed values. An Enum structure can hold a number of values that can also be backed with integer or string values.
In this comprehensive session, we will discover what Enums are, why they are useful, how to apply them on our applications, and things to watch out for when using Enums.
Xlab #1: Advantages of functional programming in Java 8XSolve
Presentation from xlab workshop about functional programming components introduced to the Java 8. How to operate the streams and lambdas in theory and practice.
Building and Incredible Machine with Pipelines and Generators in PHP (IPC Ber...dantleech
Did you know that Generators and Pipelines can be combined in order to
solve software engineering problems?
Generators have been available to us in PHP for about 5 years, they are a very
powerful tool in a developers toolbox, they can be used to make your life
easier (e.g. as data providers in PHPUnit), to help process large amounts of
data, and even to enable co-operative multi-tasking.
Pipelines provide a way to compose complex tasks from stages.
In this talk we will briefly discuss a specific problem in PHPBench (a
benchmarking tool for PHP) which can be solved through the use of Generators
(and pipelines!). We will then explore both topics generally, before combining
them into an Incredible Machine in a live coding session.
Durian: a PHP 5.5 microframework with generator-style middlewareKuan Yen Heng
Durian utilizes the newest features of PHP 5.4 and 5.5 as well as lightweight library components to create an accessible, compact framework with performant routing and flexible generator-style middleware.
Video presentation: https://www.youtube.com/watch?v=jLAFXQ1Av50
Most applications written in Ruby are great, but also exists evil code applying WOP techniques. There are many workarounds in several programming languages, but in Ruby, when it happens, the proportion is bigger. It's very easy to write Ruby code with collateral damage.
You will see a collection of bad Ruby codes, with a description of how these codes affected negatively their applications and the solutions to fix and avoid them. Long classes, coupling, misapplication of OO, illegible code, tangled flows, naming issues and other things you can ever imagine are examples what you'll get.
Go beyond the documentation and explore some of what's possible if you stretch symfony to its limits. We will look at a number of aspects of symfony 1.4 and Doctrine 1.2 and tease out some powerful functionality you may not have expected to find, but will doubtless be able to use. Topics covered will include routing, forms, the config cache and record listeners. If you're comfortable in symfony and wondering what's next, this session is for you.
Slides from my talk at the GTA-PHP Meetup Group about getting mixed HTML / PHP code into objects using SOLID principles.
Meetup page: http://www.meetup.com/GTA-PHP-User-Group-Toronto/events/230656470/
Code is on github: https://github.com/zymsys/solid
Slides from presentation on PHP 5.5 Generators given to PHP Brighton group on 16th December 2013, and subsequently to the PHP Cambridge group on 22nd September 2014
Rich Model And Layered Architecture in SF2 ApplicationKirill Chebunin
Presentation for Symfony Camp UA 2012.
* What are Rich Model, Service Layer & Layered Architecture
* Layered architecture in Sf2 Application
* Integration with 3rd party bundles
Diving into HHVM Extensions (php[tek] 2016)James Titcumb
HHVM is quickly gaining popularity, and it is a pretty exciting time for PHP runtimes. Have you ever wondered what is going on beneath this slick, super-speedy engine? I wondered that myself, so I dived into the internals of HHVM, discovering a treasure trove of awesome stuff. In this talk, I will show you how HHVM works and how it all pieces together through a guided tour of the codebase. I will also show you a couple of ways to write your own incredible HHVM extensions.
PHP 8.1 brings Enums, one of the most requested features in PHP.
Enums, or Enumerations, allow creating strict and type-safe structures for fixed values. An Enum structure can hold a number of values that can also be backed with integer or string values.
In this comprehensive session, we will discover what Enums are, why they are useful, how to apply them on our applications, and things to watch out for when using Enums.
Xlab #1: Advantages of functional programming in Java 8XSolve
Presentation from xlab workshop about functional programming components introduced to the Java 8. How to operate the streams and lambdas in theory and practice.
Building and Incredible Machine with Pipelines and Generators in PHP (IPC Ber...dantleech
Did you know that Generators and Pipelines can be combined in order to
solve software engineering problems?
Generators have been available to us in PHP for about 5 years, they are a very
powerful tool in a developers toolbox, they can be used to make your life
easier (e.g. as data providers in PHPUnit), to help process large amounts of
data, and even to enable co-operative multi-tasking.
Pipelines provide a way to compose complex tasks from stages.
In this talk we will briefly discuss a specific problem in PHPBench (a
benchmarking tool for PHP) which can be solved through the use of Generators
(and pipelines!). We will then explore both topics generally, before combining
them into an Incredible Machine in a live coding session.
Durian: a PHP 5.5 microframework with generator-style middlewareKuan Yen Heng
Durian utilizes the newest features of PHP 5.4 and 5.5 as well as lightweight library components to create an accessible, compact framework with performant routing and flexible generator-style middleware.
Php my sql - functions - arrays - tutorial - programmerblog.netProgrammer Blog
In this ppt you will learn about functions and array in php. What are functions, how to declare and use. built in functions. include and required keywords. how are arguments used. how to create functions inside functions.
What are php arrays, how to create an array and use them. Built in array functions. What are super globals?
PHP has come a long way since it’s inception. What started out as an ecosystem of functions passed around on the internet eventually turned into a land of frameworks. These first frameworks were saddled with the problem of size, where if you wanted to use part of Zend Framework 1, for example, in your app, you pulled in the entire thing. Those days are gone now and frameworks are increasingly decoupled, but none so much as the Aura project. We’ll dive into what Aura is and how we can use it as standalone libraries as well as for full stack development.
Magento Live Australia 2016: Request FlowVrann Tulika
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This talk discusses various issues of low-level PHP performance, such as: When is it more efficient to use arrays or objects? What causes catastrophic garbage collection? Does adding type annotations make PHP faster or slower?
I will answer these types of question with a (shallow) dive into PHP internals, touching on various topics like value representation, bytecode optimization and GC.
Hadoop isn't limited to running Java code, you can write your jobs in a variety of dynamic languages.
This talk is about Hadoop's Streaming API, and the best way we found to run Perl jobs on Amazon's Elastic MapReduce platform.
Introduction for beginners how to start laravel5 application in easy way and what to be known before start working with laravel5. Prerequisite for this course is basic oops concepts, PHP 5.4 + knowledge , MVC pattern knowledge will be advantage.
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After the PSR-15 was finally published in the spring of 2018, the micro framework Zend/Expressive has archieved the next stage with its 3.0 release. Zend/Expressive suits all kinds of applications perfectly: from classic full-stack web applications via REST services through to special applications like PHP-based Alexa Skills. The third version of the micro framework based on Middleware can be your means of choice. This session introduces all the innovations in Zend/Expressive 3, presents different application possibilities, and demonstrates how to migrate from older Zend/Expressive versions.
Similar to A Functional Guide to Cat Herding with PHP Generators (20)
Quarkus Hidden and Forbidden ExtensionsMax Andersen
Quarkus has a vast extension ecosystem and is known for its subsonic and subatomic feature set. Some of these features are not as well known, and some extensions are less talked about, but that does not make them less interesting - quite the opposite.
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Software Engineering, Software Consulting, Tech Lead.
Spring Boot, Spring Cloud, Spring Core, Spring JDBC, Spring Security,
Spring Transaction, Spring MVC,
Log4j, REST/SOAP WEB-SERVICES.
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How to Position Your Globus Data Portal for Success Ten Good PracticesGlobus
Science gateways allow science and engineering communities to access shared data, software, computing services, and instruments. Science gateways have gained a lot of traction in the last twenty years, as evidenced by projects such as the Science Gateways Community Institute (SGCI) and the Center of Excellence on Science Gateways (SGX3) in the US, The Australian Research Data Commons (ARDC) and its platforms in Australia, and the projects around Virtual Research Environments in Europe. A few mature frameworks have evolved with their different strengths and foci and have been taken up by a larger community such as the Globus Data Portal, Hubzero, Tapis, and Galaxy. However, even when gateways are built on successful frameworks, they continue to face the challenges of ongoing maintenance costs and how to meet the ever-expanding needs of the community they serve with enhanced features. It is not uncommon that gateways with compelling use cases are nonetheless unable to get past the prototype phase and become a full production service, or if they do, they don't survive more than a couple of years. While there is no guaranteed pathway to success, it seems likely that for any gateway there is a need for a strong community and/or solid funding streams to create and sustain its success. With over twenty years of examples to draw from, this presentation goes into detail for ten factors common to successful and enduring gateways that effectively serve as best practices for any new or developing gateway.
Innovating Inference - Remote Triggering of Large Language Models on HPC Clus...Globus
Large Language Models (LLMs) are currently the center of attention in the tech world, particularly for their potential to advance research. In this presentation, we'll explore a straightforward and effective method for quickly initiating inference runs on supercomputers using the vLLM tool with Globus Compute, specifically on the Polaris system at ALCF. We'll begin by briefly discussing the popularity and applications of LLMs in various fields. Following this, we will introduce the vLLM tool, and explain how it integrates with Globus Compute to efficiently manage LLM operations on Polaris. Attendees will learn the practical aspects of setting up and remotely triggering LLMs from local machines, focusing on ease of use and efficiency. This talk is ideal for researchers and practitioners looking to leverage the power of LLMs in their work, offering a clear guide to harnessing supercomputing resources for quick and effective LLM inference.
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How Recreation Management Software Can Streamline Your Operations.pptxwottaspaceseo
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Key principles of platformless, including API-first, cloud-native middleware, platform engineering, and developer experience.
How Choreo enables the platformless experience.
How key concepts like application architecture, domain-driven design, zero trust, and cell-based architecture are inherently a part of Choreo.
Demo of an end-to-end app built and deployed on Choreo.
In software engineering, the right architecture is essential for robust, scalable platforms. Wix has undergone a pivotal shift from event sourcing to a CRUD-based model for its microservices. This talk will chart the course of this pivotal journey.
Event sourcing, which records state changes as immutable events, provided robust auditing and "time travel" debugging for Wix Stores' microservices. Despite its benefits, the complexity it introduced in state management slowed development. Wix responded by adopting a simpler, unified CRUD model. This talk will explore the challenges of event sourcing and the advantages of Wix's new "CRUD on steroids" approach, which streamlines API integration and domain event management while preserving data integrity and system resilience.
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Unleash Unlimited Potential with One-Time Purchase
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A Functional Guide to Cat Herding with PHP Generators
1. A Functional Guide to
Cat Herding with PHP
Generators
The Filter/Map/Reduce Pattern for PHP
Generators
2. A Functional Guide to Cat Herding with PHP Generators
• Blog Post
http://markbakeruk.net/2016/01/19/a-functional-guide-to-cat-herding-with-
php-generators/
• Code Examples
https://github.com/MarkBaker/GeneratorFunctionExamples
6. A Functional Guide to Cat Herding with PHP Generators
namespace GpxReader;
class GpxHandler {
protected $gpxReader;
public function __construct($gpxFilename) {
$this->gpxReader = new XMLReader();
$this->gpxReader->open($gpxFilename);
}
public function getElements($elementType) {
while ($this->gpxReader->read()) {
if ($this->gpxReader->nodeType == XMLREADER::ELEMENT &&
$this->gpxReader->name == $elementType) {
$doc = new DOMDocument('1.0', 'UTF-8');
$xml = simplexml_import_dom($doc->importNode($this->gpxReader->expand(), true));
$gpxAttributes = $this->readAttributes($this->gpxReader);
$gpxElement = $this->readChildren($xml);
$gpxElement->position = $gpxAttributes;
yield $gpxElement->timestamp => $gpxElement;
}
}
}
}
7. A Functional Guide to Cat Herding with PHP Generators
// Create our initial Generator to read the gpx file
$gpxReader = new GpxReaderGpxHandler($gpxFilename);
// Iterate over the trackpoint set from the gpx file,
// displaying each point detail in turn
foreach ($gpxReader->getElements('trkpt') as $time => $element) {
printf(
'%s' . PHP_EOL .
' latitude: %7.4f longitude: %7.4f elevation: %d' . PHP_EOL,
$time->format('Y-m-d H:i:s'),
$element->position->latitude,
$element->position->longitude,
$element->elevation
);
}
10. Cat Herding with PHP Generators – Filter
• A filter selects only a subset of values from the Traversable.
• The rules for filtering are defined in a callback function.
• If no callback is provided, then only non-empty values are returned.
11. Cat Herding with PHP Generators – Filter
function notEmpty($value) {
return !empty($value);
}
/**
* Version of filter to use with versions of PHP prior to 5.6.0,
* without the `$flag` option
*
**/
function filter(Traversable $filter, Callable $callback = null) {
if ($callback === null) {
$callback = 'notEmpty';
}
foreach ($filter as $key => $value) {
if ($callback($value)) {
yield $key => $value;
}
}
}
12. Cat Herding with PHP Generators – Filter
/**
* The `$flag` option (and the constants ARRAY_FILTER_USE_KEY and ARRAY_FILTER_USE_BOTH)
* were introduced in PHP 5.6.0
*
**/
function filter(Traversable $filter, Callable $callback = null, $flag = 0) {
if ($callback === null) {
$callback = 'notEmpty';
}
foreach ($filter as $key => $value) {
switch($flag) {
case ARRAY_FILTER_USE_KEY:
if ($callback($key)) {
yield $key => $value;
}
break;
case ARRAY_FILTER_USE_BOTH:
if ($callback($value, $key)) {
yield $key => $value;
}
break;
default:
if ($callback($value)) {
yield $key => $value;
}
break;
}
}
}
13. Cat Herding with PHP Generators – Filter
// Create our initial Generator to read the gpx file
$gpxReader = new GpxReaderGpxHandler($gpxFilename);
// Define the date/time filter parameters
$startTime = new DateTime('2015-03-02 13:20:00Z');
$endTime = new DateTime('2015-03-02 13:30:00Z');
// Create the filter callback with the date/time parameters we've just defined
$timeFilter = function($timestamp) use ($startTime, $endTime) {
return $timestamp >= $startTime && $timestamp <= $endTime;
};
14. Cat Herding with PHP Generators – Filter
// Iterate over the trackpoint set from the gpx file,
// displaying each point detail in turn
foreach (filter($gpxReader->getElements('trkpt'), $timeFilter, ARRAY_FILTER_USE_KEY)
as $time => $element) {
printf(
'%s' . PHP_EOL . ' latitude: %7.4f longitude: %7.4f elevation: %d' . PHP_EOL,
$time->format('Y-m-d H:i:s'),
$element->position->latitude,
$element->position->longitude,
$element->elevation
);
}
16. Cat Herding with PHP Generators – Map
• A map is like a foreach loop that transforms each value in the
Traversable.
• Each input value is transformed into a new output value.
• The rules for the transformation are defined in a callback function.
17. Cat Herding with PHP Generators – Map
function map(Callable $callback, Traversable $iterator) {
foreach ($iterator as $key => $value) {
yield $key => $callback($value);
}
}
18. Cat Herding with PHP Generators – Map
namespace GpxReaderHelpers;
class DistanceCalculator {
public function setDistance(GpxReaderGpxElement $point) {
$point->distance = $this->calculateDistance($point);
return $point;
}
}
19. Cat Herding with PHP Generators – Map
// Create our initial Generator to read the gpx file
$gpxReader = new GpxReaderGpxHandler($gpxFilename);
// Set the mapper to calculate the distance between a trackpoint
// and the previous trackpoint
$distanceCalculator = new GpxReaderHelpersDistanceCalculator();
20. Cat Herding with PHP Generators – Map
// Iterate over the trackpoint set from the gpx file, mapping the distances as we go,
// displaying each point detail in turn
foreach (map([$distanceCalculator, 'setDistance'], $gpxReader->getElements('trkpt'))
as $time => $element) {
printf(
'%s' . PHP_EOL . ' latitude: %7.4f longitude: %7.4f elevation: %d' . PHP_EOL .
' distance from previous point: %5.2f m' . PHP_EOL,
$time->format('Y-m-d H:i:s'),
$element->position->latitude,
$element->position->longitude,
$element->elevation,
$element->distance
);
}
21. Cat Herding with PHP Generators – Map
2015-03-02 07:59:35
latitude: 54.5132 longitude: -3.0448 elevation: 0
distance from previous point: 0.00 m
2015-03-02 08:00:31
latitude: 54.5132 longitude: -3.0451 elevation: 0
distance from previous point: 17.15 m
2015-03-02 08:00:51
latitude: 54.5132 longitude: -3.0449 elevation: 192
distance from previous point: 15.74 m
...
2015-03-02 14:50:39
latitude: 54.4392 longitude: -2.9714 elevation: 52
distance from previous point: 98.87 m
2015-03-02 14:50:49
latitude: 54.4400 longitude: -2.9722 elevation: 52
distance from previous point: 106.70 m
22. Cat Herding with PHP Generators – Reduce
• A reduce aggregates all the values in the Traversable to a single value.
• A callback function determines the process for the aggregation.
24. Cat Herding with PHP Generators – Reduce
// Reduce our trackpoint set from the gpx file (mapping the distance as we go)
// and summing the results to calculate the total distance travelled
$totalDistance = reduce(
map([$distanceCalculator, 'setDistance'], $gpxReader->getElements('trkpt')),
function($runningTotal, $value) {
$runningTotal += $value->distance;
return $runningTotal;
},
0.0
);
// Display the results of our reduce
printf(
'Total distance travelled is %5.2f km' . PHP_EOL,
$totalDistance / 1000
);
25. Cat Herding with PHP Generators – Map
Total distance travelled is 19.27 km
28. A Functional Guide to Cat Herding with PHP Generators
https://github.com/lstrojny/functional-php
29. A Functional Guide to Cat Herding with PHP Generators
No cats were forced to walk anywhere that they didn't want to go
during the writing of this presentation.
31. Who am I?
Mark Baker
Design and Development Manager
InnovEd (Innovative Solutions for Education) Ltd
Coordinator and Developer of:
Open Source PHPOffice library
PHPExcel, PHPWord,PHPPowerPoint, PHPProject, PHPVisio
Minor contributor to PHP core
@Mark_Baker
https://github.com/MarkBaker
http://uk.linkedin.com/pub/mark-baker/b/572/171