JavaScript vs PHP in 2021

By | January 31, 2021
JavaScript vs PHP

For a web developer, PHP is replaceable with other back-end tools, but he or she cannot replace JavaScript though there are various frameworks of JavaScript that are treading these days yet JavaScript is irreplaceable. Even comparing PHP and JavaScript is not fair both are used for completely different purposes so the main focus of this article would be on the top difference between these two technologies. JavaScript has a framework known as node.js which uses JavaScript at the server-side and because of this JS tool only we can compare the role of JavaScript with PHP.

Here in this article, we have provided a simple and effective head to head comparison between JavaScript and PHP which tell the disparities between these two powerful web-development tools, but before comparing them let’s have a brief introduction of each one.


What is  JavaScript?

JavaScript is a powerful scripting language developed by Brenden Eich. It is one of the main pillars of Font-End development along with HTML and CSS. We called it scripting language because it can be embedded within an HTML page. It also follows the concept of Object-Oriented programming and its code gets interpreted by the browser itself, which makes it a client-side programming language.

To run a JavaScript code, we do not need to install any compiler or Interpreter, a simple web-browser is enough to execute its code. As compared to other front-end tools JavaScript covers a large area of web development, it has many powerful frameworks such as Angular, React, Vue, Node.js, etc. here node.js has extended the limits of JavaScript to the back-end development and server scripting.

Features of JavaScript

  • It is an Object-Oriented Scripting language.
  • Give user control to manipulate the HTML content
  • Lightweight and easy to learn.
  • One of the best programming language of 2021.
  • It can be used for either front-end or back-end development.
  • An interpreted programming language, which makes it easy to debug.
  • It has various powerful libraries.
  • It can handle time and date.

What is PHP?

PHP stands for Hypertext Preprocessor, which was developed in 1995 and it is a general-purpose server-side scripting language which means its code execute at the server. Though these days we have many other server-side scripting tools, yet more than 82% of websites build on PHP.

PHP is used to build web-applications, no matter whether it is a small or big application PHP can build any web application, much famous Content Management Systems (CMS) such as WordPress, Drupal, and Joomla are built on PHP.

PHP is a server-side scripting language that makes it slow as compared to JavaScript because the code executes at the server-side and then sends the response to the user in HTML format this whole process of executing a file at the server-side and sending response make PHP complete execution slow.

PHP Features

  • Open Source programming language.
  • An interpreted language, which means its code executes line by line.
  • Easy to learn.
  • Platform independent.
  • Dynamic type or Loosely Typed programming language.
  • Used to create dynamic web pages.
  • It has the capability to access the database.
  • It can be integrated with Relational Database such as MySQL, PostgreSQL, Oracle, etc.

JavaScript vs PHP Similarities

Though both the languages are used for different purposes yet they shear some similarities which you should know.

1. Interpreted Programming languages:

Both languages are Interpreted programming languages, and it is the most common feature of both the languages.

2. Scripting Languages

Both are the scripting language and can be embedded inside the HTML page.

3. Open Source

Both the programming languages are free to use.

4. Object-Oriented Programming

Both languages support the concept of Object-Oriented programming.

5. Case Sensitive

Both the programming language are case sensitive.

6. Platform Independent

Both languages are platform-independent and can be run on any Operating system.

Head to Head Comparison Between JavaScript vs PHP




JS was created by Brendan Eich in 1995 PHP was created by Rasmus Lerdorf in 1994

Scripting Technology

JavaScript is a Client-side technology PHP is a server-side technology

Code Execution:

Its Code execute at the client-side, on the web browser Its code executes at the server, and then it sends back the response to the user.

Learning Curve:

JavaScript is easy to learn, as compared to PHP but is we go deep in JavaScript its framework could be complex to understand. PHP, on the other hand, is a little hard to learn and its frameworks make it more complex to use.
Code Security
There is no Code security in JavaScript, your JavaScript code can be seen by any user. As PHP code executes at the server so it provides more code security and the code cannot be seen by the user.


JavaScript is a single thread programming language. PHP is a multi-thread programming language.


JavaScript cannot access the database directly, it needs an environment to do this, so to access database using JavaScript we can use Node.js PHP can easily access a database to create dynamic web-applications.


JavaScript can linked with HTML, XML and Ajax PHP is limited to HTML


JSON stands for JavaScript Object Notation, which is a data format to send data, and JavaScript and Node.js use JSON more effectively. PHP can also use JSON, but not that much effectively like JS.

 JavaScript vs PHP which programming language should I choose?

It does not matter whether you want to be a full-stack developer or only a back-end developer you cannot just ignore JavaScript. Only using JavaScript, you can be a full-stack developer but using PHP you are limited to Back-end development, and in past few years, PHP has lost its position as the top backend tool now there are many other tools in-game which are performing better than PHP.

So to be a web-developer we suggest you to learn JavaScript with one of its frameworks, you do not need to learn everything in JS because it covers a lot, once you are done with JS you can move to any backend tool it could be either PHP or any other popular back-end technology, for a beginner PHP is one of the best back-end development tools.


Both the technologies have their specific purpose but if we look at the popularity of each, here JavaScript has an edge over PHP, many popular programming indices rank JavaScript as the number one programming language. So with this, we hope you get a better idea which programming language you can choose in 2021.

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