Do you want to raise your salary? Do you want always to be in demand? Do you want to have your job as long as you want? It is absolutely real! You just need to change the way you write your code. Basically, you need to increase your job security. You have to write code which will be almost impossible to maintain for everyone except you. And in these series of articles, I will tell you how to achieve it. Welcome under the cut.
In my opinion transaction management is a really important topic for each backend developer. In general, people don’t pay attention to it while using Spring framework.
But I think, it is important to know how to use transactions properly. Because sometimes can happen that there was an exception thrown inside your method, but transaction was not rolled back and it is not clear why? Or some other “strange” cases.
A linked list is a linear data structure, which contains node structure and each node contains two elements. A data part that stores the value at that node and next part that stores the link to the next node as shown in the below image:
The first node also known as HEAD is usually used to traverse through the linked list. The last node (next part of the last node) points to NULL. The list can be visualized as a chain of nodes, where every node points to the next node.
In PHP, singly linked list can be represented as a class and a Node as a separate class. The LinkedList class contains a reference of Node class type.
//node structure
class Node {
public $data;
public $next;
}
class LinkedList {
public $head;
//constructor to create an empty LinkedList
public function __construct(){
$this->head = null;
}
};
One of the modules in the Windows kernel provides support for combining a set of file operations into an entity known as a transaction. Just like in databases, these entities are isolated and atomic. You can make some changes to the file system that won't be visible outside until you commit them. Or, as an alternative, you can always rollback everything. In any case, you act upon the group of operations as a whole. Precisely what needed to preserve consistency while installing software or updating our systems, right? If something goes wrong — the installer or even the whole system crashes — the transaction rolls back automatically.
From the very first time I saw an article about this incredible mechanism, I always wondered how the world would look like from the inside. And you know what? I just discovered a truly marvelous approach to force any process to operate within a predefined transaction, which this margin is too narrow to contain. Furthermore, most of the time, it does not even require administrative privileges.
Let's then talk about Windows internals, try out a new tool, and answer one question: what does it have to do with sandboxes?
PHP evolves continuously and they just released their latest PHP 7.4 update. Performance and speed keep advancing, as we have already been proved in the past PHP 7 releases. Preloading is one of the most thrilling new updates. It quickens script execution and makes code cleaner and faster due to the simplified common lines of code.
PHP is an important element in the world wide web and is used in over 79% of all websites. Well-known websites like Facebook, Wikipedia, WordPress and much more are using PHP.
We can see a double speed increase when looking at WordPress sites running PHP and comparing PHP 5 and 7. While using the latest PHP version out there — WordPress powered websites gain the most.
<dependency>
<groupId>com.github.michaelgantman</groupId>
<artifactId>MgntUtils</artifactId>
<version>1.7.0.3</version>
</dependency>
<dependency>
<groupId>com.github.michaelgantman</groupId>
<artifactId>MgntUtils</artifactId>
<version>1.7.0.3</version>
<classifier>javadoc</classifier>
</dependency>
<dependency>
<groupId>com.github.michaelgantman</groupId>
<artifactId>MgntUtils</artifactId>
<version>1.7.0.3</version>
<classifier>sources</classifier>
</dependency>
This article we are going to learn is: How to install and run the swoft websocket server.
This article is one of a series of articles on the Swoft WebSocket Server. Let's learn about Swoft!
Swoft is a PHP high performance microservice coroutine framework. It has been published for many years and has become the best choice for php.
It can be like Go, built-in coroutine web server and common coroutine client and is resident in memory, independent of traditional PHP-FPM.
There are similar Go language operations, similar to the Spring Cloud framework flexible annotations.
Through three years of accumulation and direction exploration, Swoft has made Swoft the Spring Cloud in the PHP world, which is the best choice for PHP's high-performance framework and microservices management.
I don’t care what your dragon’s said, it’s a lie. Dragons lie. You don’t know what’s waiting for you on the other side.This article is based on the post in the Krister Walfridsson’s blog, “Why undefined behavior may call a never called function?”.
Michael Swanwick, The Iron Dragon’s Daughter
From idea to implementation: modifying the existing elliptic curve signature scheme to be deterministic and providing functions on it to obtain verifiable within the blockchain pseudorandom numbers.
In this post we'd like to share an interesting way of dealing with configuration of a distributed system.
The configuration is represented directly in Scala language in a type safe manner. An example implementation is described in details. Various aspects of the proposal are discussed, including influence on the overall development process.
Why do so many programmers hate UI work? Because it is tedious. Especially, for the Web, but other types of UI are only slightly easier. Layouts, margins, paddings — neverending stream of little tweaks to make it look OK on all sane environments, and somehow this freaking button sometimes overlaps that input field. Rrrr! And yes, it should not hang on button clicks, which means a lot of asynchronous programming, which is a nightmare.
And don’t even speak about aesthetics and usability! Choose right colours, element sizes and locations, find/draw images and put them where they fit, think about user workflows — isn’t it a designers’ or Ux specialists’ job?! Leave me alone, I’m a programmer. I work with backend layers, where everything is straightforward and linear, there are no buttloads of different environments to adjust to, and design is guided by mere logic without pesky fussing with ‘user friendliness’ and ’beauty’!