The document summarizes new features coming in PHP 7.4, including typed properties, arrow functions, the nullsafe operator, and array spread syntax. It also discusses future language features like property accessors and generics. Some deprecations are noted, such as changes to ternary operator and concatenation precedence to avoid ambiguity.
Семинар по Node.js в КПИ 20 октября 2014. Докладчики: Тимур Шемсединов, Никита Савченко, Максим Петренко. Краткое содержание:
* Что такое Node.js и как работает JavaScript в V8
* Профессионалы расскажут, почему они выбрали Node.js
* Вы узнаете его сильные и слабые стороны и где его лучше применять
* Будет полный обзор особеностей и внутреннего строения Node.js
* Примеры внедрения и Highload-проекты
* Вопросы развертывания, хостинг, тестирования, и отладки
* Где и что учить, что читать, как осваивать
The Functional Programmer's Toolkit (NDC London 2019)Scott Wlaschin
(slides and video at https://fsharpforfunandprofit.com/fptoolkit)
The functional programming community has a number of patterns with strange names such as monads, monoids, functors, and catamorphisms.
In this beginner-friendly talk, we'll demystify these techniques and see how they all fit together into a small but versatile "tool kit".
We'll then see how the tools in this tool kit can be applied to a wide variety of programming problems, such as handling missing data, working with lists, and implementing the functional equivalent of dependency injection.
How do you measure the quality of your code? Performance and testing are just one aspect of code, in order to meet deadlines and make maintenance quicker you also need your code to be readable, decoupled and generally easier to comprehend and work with. This talk will go over tips and exercises to help you identify trouble areas, refactor them and train you to write better code in future projects. Come make your code look and function better.
Семинар по Node.js в КПИ 20 октября 2014. Докладчики: Тимур Шемсединов, Никита Савченко, Максим Петренко. Краткое содержание:
* Что такое Node.js и как работает JavaScript в V8
* Профессионалы расскажут, почему они выбрали Node.js
* Вы узнаете его сильные и слабые стороны и где его лучше применять
* Будет полный обзор особеностей и внутреннего строения Node.js
* Примеры внедрения и Highload-проекты
* Вопросы развертывания, хостинг, тестирования, и отладки
* Где и что учить, что читать, как осваивать
The Functional Programmer's Toolkit (NDC London 2019)Scott Wlaschin
(slides and video at https://fsharpforfunandprofit.com/fptoolkit)
The functional programming community has a number of patterns with strange names such as monads, monoids, functors, and catamorphisms.
In this beginner-friendly talk, we'll demystify these techniques and see how they all fit together into a small but versatile "tool kit".
We'll then see how the tools in this tool kit can be applied to a wide variety of programming problems, such as handling missing data, working with lists, and implementing the functional equivalent of dependency injection.
How do you measure the quality of your code? Performance and testing are just one aspect of code, in order to meet deadlines and make maintenance quicker you also need your code to be readable, decoupled and generally easier to comprehend and work with. This talk will go over tips and exercises to help you identify trouble areas, refactor them and train you to write better code in future projects. Come make your code look and function better.
Gor Nishanov, C++ Coroutines – a negative overhead abstractionSergey Platonov
C++ coroutines are one of the few major features that may land in C++17. We will look at the current standardization status, available experimental implementations and develop a small coroutine adapter over raw C networking APIs that will beat hand-crafted state machine in performance.
Bootstrap is the most popular HTML, CSS and JS framework for developing responsive, mobile first projects on the web.
How to use bootstrap, a framework for web design
Cryptography and network Security
The Data Encryption Standard (DES) is a symmetric-key block cipher published by the National Institute of Standards and Technology (NIST).
This is a "PHP 201" presentation that was given at the December 2010 Burlington, Vermont PHP Users group meeting. Going beyond the basics, this presentation covered working with arrays, functions, and objects.
Gor Nishanov, C++ Coroutines – a negative overhead abstractionSergey Platonov
C++ coroutines are one of the few major features that may land in C++17. We will look at the current standardization status, available experimental implementations and develop a small coroutine adapter over raw C networking APIs that will beat hand-crafted state machine in performance.
Bootstrap is the most popular HTML, CSS and JS framework for developing responsive, mobile first projects on the web.
How to use bootstrap, a framework for web design
Cryptography and network Security
The Data Encryption Standard (DES) is a symmetric-key block cipher published by the National Institute of Standards and Technology (NIST).
This is a "PHP 201" presentation that was given at the December 2010 Burlington, Vermont PHP Users group meeting. Going beyond the basics, this presentation covered working with arrays, functions, and objects.
Why async and functional programming in PHP7 suck and how to get overr it?Lucas Witold Adamus
This presentation describes basic issues related to functional programming with PHP and solution for most of problems served by the library called PhpSlang.
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.
PHP 5.3 has many new features that allow very different paradigms of software development, that may be unfamiliar to many PHP developers. If you want to learn more about functional or aspect-oriented programming, or how to organize your PHP libraries according to the new de facto PHP namespacing standard, don't miss this talk.
Mirror, mirror on the wall - Building a new PHP reflection library (Nomad PHP...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* 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.
(*actual magic or time-warp not guaranteed)
Code smell is any symptom in the source code of a program that possibly indicates a deeper problem.
So let's see what are code smell we can remove from our code.
Replacing dependents with doubles is a central part of testing that every developer has to master. This talk goes over the different types of doubles and explains their place in testing, how to implement them in a mainstream mocking framework, and which strategies or doubles to use in different message exchange scenarios between objects. After this talk you will have moved a step forward in your understanding of testing in the context of object oriented programming.
LLVM is currently finalizing the migration from typed pointers (i32*) to opaque pointers (ptr) -- the likely largest intermediate representation change in LLVM's history. In this talk, we'll discuss the motivations for the change, how it will affect developers working on/with LLVM in practice, and why this migration took such a long time. We'll also briefly cover possible future IR changes based on opaque pointers.
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!
PHP 8.0 is expected to be released by the end of the year, so it’s time to take a first look at the next major version of PHP. Attributes, union types, and a just-in-time compiler are likely the flagship features of this release, but there are many more improvements to be excited about. As PHP 8.0 is a major version, this release also includes backwards-incompatible changes, many of which are centered around stricter error handling and more type safety.
Presentation from phpfwdays 2020.
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.
PHP 7 – What changed internally? (Forum PHP 2015)Nikita Popov
One of the main selling points of PHP 7 is greatly improved performance, with many real-world applications now running twice as fast… But where do these improvements come from?
At the core of PHP 7 lies an engine rewrite with focus on improving memory usage and performance. This talk provides an overview of the most significant changes, briefly covering everything from data structure changes, over enhancements in the executor, to the new compiler implementation.
PHP 7 – What changed internally? (PHP Barcelona 2015)Nikita Popov
One of the main selling points of PHP 7 is greatly improved performance, with many real-world applications now running twice as fast… But where do these improvements come from? At the core of PHP 7 lies an engine rewrite with focus on improving memory usage and performance. This talk provides an overview of the most significant changes, briefly covering everything from data structure changes, over enhancements in the executor, to the new compiler implementation.
As a result of an engine rewrite with focus on more efficient data structures, PHP 7 offers much improved performance and memory usage. This session describes important aspects of the new implementation and how it compares to PHP 5. A particular focus will be on the representation of values, arrays and objects.
Slack (or Teams) Automation for Bonterra Impact Management (fka Social Soluti...Jeffrey Haguewood
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on the notifications, alerts, and approval requests using Slack for Bonterra Impact Management. The solutions covered in this webinar can also be deployed for Microsoft Teams.
Interested in deploying notification automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
Neuro-symbolic is not enough, we need neuro-*semantic*Frank van Harmelen
Neuro-symbolic (NeSy) AI is on the rise. However, simply machine learning on just any symbolic structure is not sufficient to really harvest the gains of NeSy. These will only be gained when the symbolic structures have an actual semantics. I give an operational definition of semantics as “predictable inference”.
All of this illustrated with link prediction over knowledge graphs, but the argument is general.
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
Connector Corner: Automate dynamic content and events by pushing a buttonDianaGray10
Here is something new! In our next Connector Corner webinar, we will demonstrate how you can use a single workflow to:
Create a campaign using Mailchimp with merge tags/fields
Send an interactive Slack channel message (using buttons)
Have the message received by managers and peers along with a test email for review
But there’s more:
In a second workflow supporting the same use case, you’ll see:
Your campaign sent to target colleagues for approval
If the “Approve” button is clicked, a Jira/Zendesk ticket is created for the marketing design team
But—if the “Reject” button is pushed, colleagues will be alerted via Slack message
Join us to learn more about this new, human-in-the-loop capability, brought to you by Integration Service connectors.
And...
Speakers:
Akshay Agnihotri, Product Manager
Charlie Greenberg, Host
Generating a custom Ruby SDK for your web service or Rails API using Smithyg2nightmarescribd
Have you ever wanted a Ruby client API to communicate with your web service? Smithy is a protocol-agnostic language for defining services and SDKs. Smithy Ruby is an implementation of Smithy that generates a Ruby SDK using a Smithy model. In this talk, we will explore Smithy and Smithy Ruby to learn how to generate custom feature-rich SDKs that can communicate with any web service, such as a Rails JSON API.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
7. Typed Properties
class User {
public int $id;
public string $name;
}
$user = new User;
$user->id = 42;
$user->name = [];
// Uncaught TypeError: Typed property User::$name
// must be string, array used
9. Nullability & Initialization
class User {
public int $id; // no null default
public ?string $name; // also no null default (!)
}
$user = new User;
var_dump($user->name);
// Uncaught Error: Typed property User::$name must
// not be accessed before initialization
10. Nullability & Initialization
class User {
public int $id;
public ?string $name = null;
}
$user = new User;
var_dump($user->name); // NULL
11. References
class User {
public int $id = 42;
public string $name = "nikic";
}
$user = new User;
$id =& $user->id;
$id = "not an id";
// Uncaught TypeError: Cannot assign string to
// reference held by property User::$id of type int
12. Poor Man’s Intersection Types
class Test {
public ?Traversable $traversable;
public ?Countable $countable;
public $both = null;
}
$test = new Test;
$test->traversable =& $test->both;
$test->countable =& $test->both;
$test->both = new ArrayIterator;
13. Poor Man’s Intersection Types
class Test {
public ?Traversable $traversable;
public ?Countable $countable;
public $both = null;
}
$test = new Test;
$test->traversable =& $test->both;
$test->countable =& $test->both;
$test->both = new ArrayIterator;
Effectively ?(Traversable&Countable)
14. Poor Man’s Intersection Types
class Test {
public ?Traversable $traversable;
public ?Countable $countable;
public $both = null;
}
$test = new Test;
$test->traversable =& $test->both;
$test->countable =& $test->both;
$test->both = new AppendIterator;
// Uncaught TypeError: Cannot assign AppendIterator
// to reference held by property Test::$countable
// of type ?Countable
16. Poor Man’s Typed Variables
$i =& int(0);
$i = "foobar";
// Uncaught TypeError: Cannot assign string to
// reference held by property class@anonymous::$prop
// of type int
17. Poor Man’s Typed Variables
function &int(int $i) {
$obj = new class { public int $prop; };
$obj->prop = $i;
$GLOBALS['huge_memory_leak'][] = $obj;
return $obj->prop;
}
$i =& int(0);
$i = "foobar";
// Uncaught TypeError: Cannot assign string to
// reference held by property class@anonymous::$prop
// of type int
18. Public Typed Properties?
class User {
private $name;
public function getName(): string {
return $this->name;
}
public function setName(string $name): void {
$this->name = $name;
}
}
34. Covariant Return Types
class A {}
class B extends A {}
class Producer {
public function produce(): A {}
}
class ChildProducer extends Producer {
public function produce(): B {}
}
Sound because $childFactory->create() still instanceof A.
35. Common Case: Self
class Foo {
public function fluent(): self {}
}
class Bar extends Foo {
public function fluent(): self {}
}
36. Ordering Issues
class A {
public function method(): B {}
}
class B extends A {
public function method(): C {}
}
class C extends B {}
37. Ordering Issues
class A {
public function method(): B {}
}
class B extends A {
public function method(): C {}
}
class C extends B {}
Sound, but class C not available when verifying B.
=> No way to reorder classes “correctly”.
=> Will only work with autoloading (for now).
38. Contravariant Parameter Types
class A {}
class B extends A {}
class Consumer {
public function comsume(B $value) {}
}
class ChildConsumer extends Consumer {
public function comsume(A $value) {}
}
Sound, but rarely useful.
39. Covariant Parameter Types?
interface Event { ... }
class SpecificEvent implements Event { ... }
interface EventHandler {
public function handle(Event $e);
}
class SpecificEventHandler implements EventHandler {
public function handle(SpecificEvent $e) {}
}
Unsound, will never work!
40. Future: Generics
interface Event { ... }
class SpecificEvent implements Event { ... }
interface EventHandler<E: Event> {
public function handle(E $e);
}
class SpecificEventHandler
implements EventHandler<SpecificEvent>
{
public function handle(SpecificEvent $e) {}
}
41. ??=
$options["something"] ??= new DefaultObject;
// Roughly equivalent to:
$options["something"] =
$options["something"] ?? new DefaultObject;
58. Concatenation Precedence
$a = 1;
$b = 2;
echo "Sum: " . $a+$b; // Deprecated in PHP 7.4
// was intended as:
echo "Sum: " . ($a+$b); // New behavior in PHP 8.0
// but PHP interprets it as:
echo ("Sum: " . $a)+$b;
59. Short Open Tags (?)
●
<? deprecated in 7.4, removed in 8.0
●
Only <?php and <?= supported
●
(???) short_open_tag default value from On to
Off in 7.4
Disclaimer: RFC accepted, but much push-back after voting.