Tag: Php

Top programming languages in the world & their courses and certifications?

by uttam.JavaScript / Node js / php / Programming Scripting LanguagesLeave a Comment on Top programming languages in the world & their courses and certifications?

The world is turning into smarter day by day with the quick development of Automation, computing, Blockchain, etc. And at the middle of it, somewhere, are programming languages. In fact, Labour Statistics have expected a 21% growth for programming jobs within the returning decade, which is quite 4x the common for all occupations. however attempting to start out out with programming is a frightening escapade, particularly for professionals with no previous expertise. thus if you’re one who cannot decide wherever to start, don’t worry as a result of we’ve got you coated. the following article aims to grant you a fast examine the highest Programming Languages within the world & their courses and certifications?

Java

Owned by the Oracle Corporation, Java is one of the oldest, most typical, in-demand programming languages in use these days. Well, think about a number of your favorite internet apps and games. It’s extremely probably that Java plays an enormous role within the code that creates their work. Another necessary factor that has kept Java’s magic intact among internet development corporations is its independence from platforms. This helps developers to basically “write once, work anywhere”(WORA). Java is everyplace and also the demand for sturdy developers is virtually high.

How does it work?

In Java, programs don’t seem to be compiled into practicable files; they’re compiled into bytecode (as mentioned earlier), that the JVM (Java Virtual Machine) then executes at runtime. Java source code is compiled into bytecode after we use the javac compiler. The bytecode gets saved on the disk with the file extension.

Reasons for Demand:

  • With its presence in almost 3 billion devices, Java’s new frameworks such as Spring, Struts, and Hibernate have also become very popular.
  • It is favored by enterprises, with roughly 90 percent of Fortune 500 companies use Java for building applications and back-end systems.
  • Java is highly recognized for its scalability and portability across multiple platforms from mainframe data centers to smartphones.
  • With millions of users across the globe, the popular users of Java include Barclays, HCL, Capital One, etc.
  • Forms the base for and is used in a multitude of domains including mobile application, web development, system programming, and big data.
  • Its powerful features include strong memory management, high performance, backward compatible and top-notch security.

Golang

Developed by the technical school big Google itself, Go is one of the newest players within the programming platform. it’s an open-source language that produces it simple to form easy, secure, and productive computer code. It combines the most effective aspects of useful and object-oriented programming, also as options a valuable set of intrinsical development tools.

How does it work?

Go was originally designed for programs associated with networking and infrastructure. it absolutely was meant to switch widespread high-performance server-side languages like Java and C++. Today, Go is used for a spread of applications like cloud and server-side applications, DevOps, command-line tools, and far additional.

Reasons for Demand:

  • Popular projects like Kubernetes, Docker, Hugo, Hyperledger Blockchain, and Ethereum are developed using Golang.
  • The language is straightforward to grasp even for the new programmers while being extremely powerful at the same time.
  • Supports multithreading at large and is hence used by a lot of companies that rely heavily on distributed systems.
  • Go has been optimized by Google to be incredibly efficient with memory and has blazing fast speed.
  • It provides high performance like C/C++ and has efficient concurrency handling like Java.
  • It is widely used in startups and some of the companies that use the language are Walmart, Springboard, Siemens, Dell.

TypeScript

TypeScript might be a superset of the JavaScript language that has a single open-source compiler and is developed within the main by one trafficker (Microsoft.) The goal of the matter is to help catch mistakes early through a sorting system and to make JavaScript development further economical.

How does it work?

TypeScript works by adding increased syntax to JavaScript so transforming it to JavaScript when the typescript compiler will its own checks. It does not modification JavaScript’s kind of system. Instead, it adds a lot of checks to it.

Reasons for Demand:

  • TypeScript simplifies JavaScript code, making it easier to read and debug.
  • TypeScript gives us all the benefits of ES6 (ECMAScript 6), plus more productivity.
  • TypeScript can help us to avoid painful bugs that developers commonly run into when writing JavaScript by type checking the code.
  • TypeScript is a modern programming language loved by engineers for making web development a lot easier.
  • You can use TypeScript everywhere instead of JavaScript, as it compiles to regular JS code. That’s another reason for its demand.

Scala

Scala could be a programming language used for practical programming and powerful static systems. It’s object-oriented and runs on JVM. It’s the aptitude to interoperate with existing Java code and libraries. It’s powerfully thought of to be a static kind of language and doesn’t have an idea of primitive information.

How does it work?

The compiler in Scala works during a similar fashion because of the Java compiler. It gets the source code and generates Java byte-code which will be dead severally on any commonplace JVM (Java Virtual Machine). Scala could be a statically typed language. Scala will execute Java.

Reasons for Demand:

  • Scala programming language variables are immutable and can be easily overloaded in Java. In addition to this, it also offers to adopt new languages like Python, Ruby, etc. to implement functional programming.
  • Scala is a language that is inherently more expressive than Java. The developers who learn Scala after Java find it easier and interesting to write code in Scala. To get the beauty of this language in comparison with Java.
  • A developer needs to be in demand always. The main reason or use of Scala is a better growth and job. Learning Scala will increase your demand and will make you even more marketable. Many companies like Twitter, LinkedIn, Foursquare, etc are using Scala.
  • Scala can be said as a language that is growing fast and lots of programmers going to join the Scala bandwagon. Even developers who know Java are now moving to learn Scala. There are many new libraries and frameworks that are being built on application of Scala.
  • A Java programming finds it difficult to learn any functional language. uses of Scala is easy due to its object-oriented functionality. Scala has clean syntax, nice libraries, good online documentation, and lots of people in the industry using it.

JavaScript

Along with HTML and CSS, Javascript is that the programming language that engineered the internet. So, it’s a fairly huge deal. Universally referred to as the language of internet developers, javascript could be a feature-rich object-based scripting language that includes asynchronous event handling and crisp syntax, it’s found widespread use within the field of internet development. What started off as an easy client-side scripting language, is currently a highlight inside the net development community that includes multiple frameworks for each backend and frontend development.

How does it work?

JavaScript is what’s known as a Client-side Scripting Language. within a standard website, you place some JavaScript code See however sites Work for details on sites. once the browser loads the page, the browser features a constitutional interpreter that reads the JavaScript code it finds on the page and runs it.

Reasons for Demand:

  • In extension to absolute JavaScript, various popular libraries and frameworks make JavaScript development easier.
  • Most accessible supporting technologies related to JavaScript are JSON, jQuery, Angular, React (JS Library), etc.
  • Fundamentally a front-end language, it can also be practiced on the server-side throughout Node.js to create scalable network applications.
  • Majority of tech giants like Google, Facebook, SAP, Dell, Accenture, etc rely on Javascript to design interactive web pages and dynamically display content to users.

PHP

PHP is used by 79% of all the websites whose server-side programming language we all know. it’s the main used for developing dynamic and data-heavy websites and applications. it’s been the cornerstone of the net for a protracted time. PHP could be an easy, fast, and platform-independent general programming language with over 631,000 repositories on GitHub.

How does it work?

The PHP software system works with the webserver, which is that the software system that delivers sites to the planet. after you A URL into your net browser’s address bar, you are causation a message to the webserver at that URL, asking it to send you an HTML file. Your browser reads the HTML file and displays the online page.

Reasons for Demand:

  • PHP is used by 79.0% of all the websites whose server-side programming languages are known.
  • PHP is simple, fast and platform-independent.
  • It is 631k repositories on GitHub and has a community of 5.9M to back it up.
  • Companies that have publicly declared usage of PHP include Facebook, Yahoo, Wikipedia.

AngularJs

AngularJS could be a client-side JavaScript MVC framework to develop a dynamic internet application. It extends the flexibility of HTML by adding intrinsical attributes and parts and additionally provides a capability to form custom attributes victimization easy JavaScript.

How does it work?

AngularJS could also be a structural framework for dynamic net apps. It permits you to use hypertext markup language as your model language and permits you to extends HTML syntax to specify your application’s elements clearly and compactly. AngularJS’s information binding and dependency injection eliminate a lot of the code you’d otherwise need to write.

Reasons for Demand:

  • Modularity is one of the prime reasons why AngularJS is popular among web developers.
  • AngularJS recognizes the need to create an additional module so that it can be combined with other developed application modules.
  • It allows and enables web developers to create multiple modules for a single web application.
  • AngularJS is one of the skills unique to this job, along with React. js, Code. js, Javascript, and CSS.
  • Today, AngularJS is a leading framework for building dynamic, single-page web applications (known as SPAs), including ones like PayPal and Netflix.

NodeJs

Node. js is primarily used for non-blocking, event-driven servers, because of its single-threaded nature. It’s used for ancient websites and back-end API services time period was designed with the period of time, push-based architectures in mind.

How does it work?

Node. js is the JavaScript runtime environment which is based on Google’s V8 Engine with the help of Node, Js we can run the JavaScript outside of the browser, js is that it is single-threaded, based on event-driven architecture, and non-blocking based on the I/O model.

Reasons for Demand:

  • A Single Language for All Layers. Another key benefit of Node.
  • It can be Hosted Anywhere.
  • It’s lightning Fast. Node.
  • It is JavaScript Everywhere. One of the biggest reasons why Node.
  • It is Lightweight. Typically, Node.
  • High Performance.
  • It is Easy to Modify and Maintain.

Conclusion

In this article, we have listed the top most popular programming languages to learn. Now, it’s your choice where you want to land your career or choose the right programming language for you, If you wanna learn then i would suggest you check out DevOpsSchool it is a great platform for learning. Get an insight to all the details we mentioned, and choose accordingly. So, make sure you should hold a good command on a specific language you choose for programming.You’ll even also join our Online and Classroom Programs.
And that concludes my list of the Top Programming Languages. Hope this article proved useful to you.

Thank you!

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Tutorial for Polymorphism in OOPS

by Ashwani KumarJavaScript / phpLeave a Comment on Tutorial for Polymorphism in OOPS

What is Polymorphism?

Polymorphism, as its name implies, comes in a variety of forms. OOP allows for the use of a variety of techniques I. Simply expressed, they have to do with how methods are used, and how different methods operate for different objects. Method Overriding and Method Overloading are two ways that polymorphic methods allow for different actions to be done.

The benefits of Polymorphism are:

  • Objects of different types can be passed through the same interface
  • Method overriding
  • Method overloading

Method Overriding:- Overriding is used in the polymorphism of runtime. By overriding a parent class’s method, a child class can implement a different method. In the case of our dogs, we may prefer a specific type of bark that is distinct from the generic type of dog (TrackingDog).

Example:-

TrackingDog’s overriding the bark() method

Method Overloading:- Overloading is used at the polymorphic build time. Although methods and functions may have the same name, the call method has its own set of arguments. Different results may be obtained depending on the number of parameters entered.

Example:- There are no parameters supplied to the updateAttendance() method. The count will be added one day. When the updateAttendance(4) argument is used, the x xupdateAttendance(x) parameter is used, and four days are added to the total.

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Tutorial for Abstraction in OOPS

by Ashwani KumarJavaScript / phpLeave a Comment on Tutorial for Abstraction in OOPS

What is Abstraction?

Basics of Computation Theory. What is "abstraction"? Abstraction unifies multiple and different objects into one concept  describes the common properties. - ppt download

Abstraction in OOP allows information/access about how codes are applied to be concealed, allowing just the required access. These details may be found in the object definitions. A famous example is the counting approach that works with list items. One thing to keep in mind is that, given the same OOP concept, all Python I data types and structures are objects. In this sense, a list is a class that has methods for completing tasks.

What is Abstraction in OOPS? - JournalDev

What is the Function of Abstraction?

Abstraction use simpler high-level instruments to get access to a complex object:

  • Using simple things to represent complexity
  • Hide complex details from user
JavaScript ES7 OOP. Abstraction. Class. #1 - YouTube

Abstraction also serves a significant security role. We only present selected data items and provide data access via classes and methods to protect the data from being exposed. In the case of an automobile, an open gas tank would make it impossible to continue driving.

There are some benefits of abstraction which is mention below:

  • Simple, high level user interfaces
  • Complex code is hidden
  • Security
  • Easier software maintenance
  • Code updates rarely change abstraction

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Tutorial for Inheritance in OOPS

by Ashwani KumarphpLeave a Comment on Tutorial for Inheritance in OOPS

what is Inheritance?

In OOP, the concept of inheritance allows a class to accept or have the properties of another class (inherited). A sub-class or derived class is a class that inherits the characteristics/methods of another class. Heritage reduces code redundancy, allowing the class to use other class methods without having to rewrite the code. This allows for dynamic programming using the main class’s methods (also called the parent class). A subclass has the same properties as a primary class, but it can also have additional methods that are either completely independent or not present in the main class.

What is the Function of Inheritance?

Children’s classes may be built to enhance the parent’s class functionality and add more characteristics once essential properties and behaviors have been defined in the parent’s class.

Example:-

This distinction is demonstrated by creating a parent class child class(HerdingDog) (Dog) and then adding a single herd() behaviour.

The following code shows how the child class (HerdingDog) inherits a parent class method (bark) (Dog), and the child class adds an extra method herd().

When the code uses the fluffy.bark() function, the method bark() travels up the child’s chain to find out where the bark method is declared.

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Tutorial for Object-oriented programming (OOP) Concept

by Ashwani KumarphpLeave a Comment on Tutorial for Object-oriented programming (OOP) Concept

Computer programming skills is in high demand in today’s technology culture for programming. Understanding object-oriented programming may be useful in the creation and management of software systems (OOP). This article covers the core concepts of OOP and illustrates them with simple examples.

What is Object-oriented programming (OOP)?

Object Oriented Programming: A curated set of resources

Object-oriented programming is the process of integrating variables (properties) and functions (methods) into a single object. These products are organized into classes that may be mixed and matched. OOP allows you to think about the objects in a program’s code as well as the various actions that go along with them.

What are the principles of Object-oriented programming (OOP)?

What are four basic principles of Object Oriented Programming? | by Munish Chandel | Medium

Encapsulation, Abstraction, Inheritance, and Polymorphism are the four basic concepts of object-oriented programming. Although these concepts appear to be extremely complicated, understanding the broad framework of how they work is beneficial. The four basic hypotheses are as follows:

  1. Inheritance: child classes inherit data and behaviors from parent class
  2. Encapsulation: containing information in an object, exposing only selected information
  3. Abstraction: only exposing high level public methods for accessing an object
  4. Polymorphism: many methods can do the same task

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Tutorial for Name Attribute in HTML for PHP

by Ashwani KumarphpLeave a Comment on Tutorial for Name Attribute in HTML for PHP

What is Name Attribute?

A set of attribute values plus an attribute identifier make up an attribute. The attribute identifier, often known as the attribute name, is a string that uniquely identifies a property. The content of an attribute is its value, and its type is not limited to that of a string. When you wish to define a specific attribute for retrieval, searches, or update, you use an attribute name. Operations that yield characteristics also return names (such as when you perform reads or searches in the directory).
You must be aware of specific directory server characteristics while using attribute names so that the result does not surprise you. These characteristics are discussed in the next section.

Uses of Name Attribute

  • The name attribute specifies a name for an HTML element.
  • This name attribute can be used to reference the element in a JavaScript.
  • For a <form> element, the name attribute is  used as a reference when the data is submitted.
  • For an <iframe> element, the name attribute can be used to target a form submission.
  • For a <map> element, the name attribute is associated with the <img>‘s usemap attribute and creates a relationship between the image and the map.
  • For a <meta> element, the name attribute specifies a name for the information/value of the content attribute.
  • For a <param> element, the name attribute is used together with the value attribute to specify parameters for the plugin specified with the <object> tag.

Name Attribute Used with:-

ElementsAttribute
<button>name
<fieldset>name
<form>name
<iframe>name
<input>name
<map>name
<meta>name
<object>name
<output>name
<param>name
<select>name
<textarea>name

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Tutorial for $_GET in Super Global Variables

by Ashwani KumarphpLeave a Comment on Tutorial for $_GET in Super Global Variables

What is $_GET?

$_GET is a global variable that is used to collect data from an HTML form after it has been submitted. The data is visible in the query string when the form uses method get to transmit data, thus the values are not concealed. The values in the URL are stored in the $_GET super global array variable.

Web Development Course: PHP lecture 1

Example:-

Output:-

Right now, we’re just seeing half of the rationale. We’ve generated a linked image of Nainital Lake in the preceding code, which will take us to the picture.php page and provide the parameters name=”Nainilake” and city=”Nainital” to it.

That is, if we click on the little image of Nainital Lake, we will be brought to the next page picture.php, where the parameters will be displayed. These arguments will be given to the next page using the get method, and they will be shown in the address bar, as get is the default way. When we wish to transmit data to an address, we use a question mark (?) to connect them to the address.

The address has the name=Nainilake parameter connected to it. If we wish to add more values, we may do so by appending an ampersand (&) after each key-value combination, similar to how city=Nainital is appended after the name parameter. Now, when you click on the image of Nainital Lake, we want the picture.php page to appear, along with the value of the parameter.

$_POST vs $_GET

PHP Variables and scopes
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How to Become a Laravel Developer?

by narayan kLaravelLeave a Comment on How to Become a Laravel Developer?

In the world of web development, things are constantly changing. On the other hand, developers have to keep pace with the changing technologies, while businesses look for efficient technologies that help them engage with customers efficiently.

One technology making major waves in the web development field is Laravel. The framework is a hit among web artisans because of its accessibility, power, and other add-on tools to build robust applications. Using the agile development approach, Laravel builds the entire development process without sacrificing functionality.

What is Laravel?

Laravel is a free, open-source PHP-based Web Framework for building High-End Web Applications, following the Model View Controller architectural pattern and based on Symfony. It is created by Taylor Otwell. Laravel is a powerful MVC PHP framework designed for developers who need a simple and elegant toolkit to build full-featured web applications.

What is Laravel Developer?

Laravel Developer is a software professional specializing in the Laravel framework. Now that Laravel technology includes a wide range of tools and libraries that speed up the development cycle, a Laravel developer can focus on design, innovation, functionality, and other things that really matter.

Prerequisities of a Laravel Developer:

  • Bachelor’s Degree/MS degree in Computer Science, Engineering, MIS, or similar relevant field.
  • Proficient in PHP, Javascript, MySQL, AJAX, jQuery, CSS and HTML.
  • Demonstrated attention to detail – in-depth knowledge of object-oriented PHP and Laravel 5 PHP Framework.
  • Experienced with SQL schema design, SOLID principles, REST API design
  • Software testing (PHPUnit, PHPSpec, Behat).
  • Excellent written and oral communication skills.
  • Working on Laravel won’t be easy so he has to be a creative thinker and a problem-solver.

Skills Required to Become an Laravel Developer:

It is fundamental to know PHP: Larvel is a PHP web framework and therefore must be well aware of PHP before placing his hand on the development process. Although it is built on the MVC pattern, its building blocks are PHP functions.

Clarity on the MVC pattern: Larvel is a PHP web framework and therefore must be well aware of PHP before placing his hand on the development process. Although it is built on the MVC pattern, its building blocks are PHP functions.

Why is Laravel the Best PHP Framework?

Because of the dire need for structured development methodologies. Laravel is a PHP framework that has become the go-to solution for developers around the world. It hosts a large ecosystem that allows for instant hosting and system deployment.

In the corporate space, Laravel web development fundamentals have been extensively used to build websites that are capable of running behind complex algorithms and handling multiple visitors at once.

Here are the some few reasons:

  • Security: One of the biggest headaches for programmers is building secure websites and apps. Laravel web development uniquely provides developers with a secure way to maintain the security of their apps.
  • MVC Support: Another major reason why Laravel is beloved among developers is that it supports MVC architectures like Symfony which helps in establishing clarity between logic and presentation. As a result, the app is able to perform better and allows for better documentation.
  • Object-Oriented Libraries: Larvel Framework provides an object-oriented library and comes with an array of pre-installed versions of which are not found in other PHP frameworks.
  • Database Migration: Data between development between the machines is a major pain point for the synchronization programmers. After long working hours and countless changes in our database, these changes can be very hard to save your database. But with Laravel, database migration is very simple, you store these changes, migration, and seeds.

What does a Laravel Developer do?

The world of software technology has given rise to a community of developers who specialize in various technologies.

A Laravel developer is like any other software developer. But, one thing that sets them apart is their special affinity for the Laravel framework using the PHP programming language. Larvel developers make it possible to create highly functional web applications that enhance the user experience.

Roles and Responsibility of Laravel Developer:

  • Building and maintaining modern web applications using standard web development tools
  • Writing clean and secure modular codes that have undergone strict testing and evaluation
  • Checking the validity and consistency of HTML, CSS, and JavaScript on different platforms
  • Debugging and resolving technical issues
  • Maintaining and designing databases
  • Performing back-end and User Interface (UI) tests to enhance the functionality of an application
  • Collaborating with other developers (front-end, back-end, mobile app, etc.) and project managers to move the Software projects faster
  • Documenting the task progress, architecture, and development process

The current PHP version is one of the most popular and desirable frameworks for companies that want to hire a Laravel developer, so if you’re well versed with the current version, your fellow developers will have your say. PHP includes over-the-top benefits and many other features that every software developer dreams of. It has libraries and modules which makes dynamic development a snap, plus saves development cost.

Features of Laravel:

The Future Scope of Laravel Developers:

Before saying anything about the future, I would like to mention here some MNCs which are using PHP today. Google, Yahoo, Rediff, Facebook, Intel, Digg, Flickr, Zynga, Borland, eBay, Nokia, Oracle, etc. I am telling you only one thing that there are a lot of small and popular online web applications based on PHP which is running online and they are all managed and addons by PHP developers. This means you have lots of opportunities to work with your dream companies.

Some of the most frequent designations include Laravel Trainee, Programmer, Web Developer, Web Designer, Software Developer. So, you see the future is bright!

To start with Laravel, check out the DevOpsSchool course. You’ll learn basic structures and techniques and dive into advanced Laravel concepts such as Views & Blade Templating Engine, Working with Routes, Handling Requests & Responses, Using Controllers and Models. You’ll even also join our Online and Classroom Programs.

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Tutorial for $_POST in Super Global Variables

by Ashwani KumarphpLeave a Comment on Tutorial for $_POST in Super Global Variables

What is $_POST?

It’s a global variable that’s used to collect data from the HTML form after it’s been submitted. Because the data is not accessible in the query string when a form uses method post to transfer data, security standards are maintained in this manner.

Example:- A form with an input field and a submit button is shown in the example below. The form data is delivered to the file provided in the action element of the form> tag when a user submits the data by clicking “Submit.” For processing form data, we point to the file itself in this case. Replace it with the filename of your choosing if you want to process form data with another PHP file. The value of the input field may then be collected using the super global variable $_POST:

Output:-

Before filling Data.
Just filling some data
After clicking on Submit button

We have developed a form in the preceding code that accepts the user’s name and age and accesses the data using the $_POST super global variable when they submit the data. Each super global variable is an array, thus it may hold many values. As a result, we took the $_POST variable’s name and age and placed them in the $nm and $age variables. We have developed a form in the preceding code that accepts the user’s name and age and accesses the data using the $_POST super global variable when they submit the data. Each super global variable is an array, thus it may hold many values. As a result, we took the $_POST variable’s name and age and placed them in the $nm and $age variables.

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Tutorial for $_REQUEST in Super Global Variables

by Ashwani KumarphpLeave a Comment on Tutorial for $_REQUEST in Super Global Variables

What is $_REQUEST?

$_REQUEST is a super global variable that’s used to collect data when an HTML form is submitted. Because $_POST and $_GET accomplish the same purpose and are extensively used, $_REQUEST is rarely used.

Global Variables - Superglobals Several predefined variables in PHP are "superglobals", which means that they are always accessible, regardless of scope. - ppt download

Example:- A form with an input field and a submit button is shown in the example below. The form data is delivered to the file provided in the action element of the form> tag when a user submits the data by clicking “Submit.” For processing form data, we point to this file in our example. Replace it with the filename of your choosing if you want to process form data with another PHP file. The value of the input field may then be collected using the super global variable $_REQUEST:

Output:-

Empty box
Just fill some data
After Clicking on submit button it shows this result

We’ve constructed a form in the above code that accepts the user’s name as input and prints it when the submit button is pressed. Because we alter the data on the same page using PHP code, we transfer the data received in the form to the same page using the $_SERVER[‘PHP SELF’] element as stated in the action attribute. The $_REQUEST super global array variable is used to obtain the data.

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