JavaScript vs PHP: What is the difference between JavaScript and PHP?

JavaScript vs PHP is a common topic of discussion. There are many factors that distinguish both programming languages. Get the difference between JavaScript and PHP.

PHP and JavaScript are popular programming languages. The two popular technical aspects are the pillar of website and app development. However, JavaScript vs PHP is the point of discussion.

Here we will cover the same discussion and explain the difference between PHP and JavaScript programming language.

JavaScript: It is a lightweight and interpreted compiled programming language. It is a scripting language for the web page. JavaScript can be useful for client-side development and server-side development.

Syntax
<script>
document. write(“JavaScript syntax”)
</script>  

It is good to keep the tags within the <head> tag. The main purpose of tags is to tell the browser to start interpreting the entire text between these tags.

Example:

<!DOCTYPE html>
<html>
<title>Basic JavaScript Example</title>
<body>
<h2>A simple JavaScript Program </h2>
<script>
Var n;
n = 5; 
For (var i=0; i<n; i++) {
document.write(“My First JavaScript Project ” +”<br>” );
}
</script>
</body>
</html>  

Output:

My First JavaScript Project
My First JavaScript Project
My First JavaScript Project
My First JavaScript Project
My First JavaScript Project  

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PHP

PHP stands for the “Hypertext Preprocessor”. It is a programming language embedded in the HTML which does all things like sending and receiving cookies and building custom web content. It also has an integration with Oracle, Postgre and MySQL.

<?php
echo “Hello Geeks !!!”;
?>  

You can easily install the Xampp. After that, name the code file with the .php extension and move the HTML or PHP file to the htdocs folder of xampp. Run the apache and SQL server after opening xampp. Go to localhost with the file URL. The PHP code always start with <?php and ends with ?>

Example:

<!DOCTYPE html>
<html>
<title>PHP code inside the HTML</title>
<body>
<?php
//Declare variables using $ symbol
$st= “My PHP Project”;
$x = 5;
//PHP for loop 
For($i= 0; $i<$x; $i++)
echo (“My PHP Project”); 
}
?>
<!-- This code will generate My PHP Project 5 times on the front end - ->
</body>
</html>  

Output:

My PHP Project
My PHP Project
My PHP Project
My PHP Project
My PHP Project  

Key Points for JavaScript vs PHP:

Javascript vs PHP key points

Web Development:

From the web development point of view, about 79% of websites use PHP and only 0.7% of websites use JavaScript as the server-side programming language.

Similarly, if it is about client side programming language then JavaScript is ahead. The percentage share of JavaScript in such a case is 95.2%.

Concurrency:

The meaning of concurrency is the relationship between tasks and threads. Any task never completes until its threads and sub-threads are not completed well. JavaScript is a single threaded functional script which is achieved on the event-driven model. PHP includes multi-threaded blocking I/O to do multiple tasks simultaneously.

External code integration:

PHP code is only integrated with HTML code. The JavaScript code is integrated with Ajax, XML and HTML like technologies.

Simplicity:

Due to the complexity in JavaScript, it is hard to learn and use. The other reasons are its advanced features, event queue use and violation of the rules.

PHP is simple to learn and use. It has bigger libraries that makes its implementation simple. Facebook also adopted PHP due to this reason.

Comments:

Comments are the readable explanation for programmers in the coding. The best explanation of JavaScript vs PHP is as follows:

PHPJAVASCRIPT
// PHP Single line comment 1// JavaScript single line comment
# PHP single line comment 2 /* JavaScript
/* PHP multi-line comment */ Multi-line comment */

JavaScript and PHP variables:

If variables are not publicly declared then PHP considers these variables as local. On the other hand, there is a need to use the var keyword in JavaScript to declare the local variable.

PHPJAVASCRIPT
Function bar () { $variable_a = ‘value’; //Local variable declaration } Function bar) { Global $variable_b; // Global variable declaration $variable_b = ‘value’; Function bar () { Var variableA =’value’; // Local variable with use of “var” } Function bar () { variableB = ‘value’; //global variable, no “var” declaration }

PHP vs JavaScript in tabular form:

Any single page app loads the page on the client side. The page is an empty container with no content. Therefore, JavaScript pushes the content to the container.

PHPJAVASCRIPT
PHP waits for IO operations to execute as it is synchronous.There are a lot of features in JavaScript like promise, callbacks and async/await
PHP code is very securedThe code in JavaScript is less secured
It is not case sensitive in case of functionsIt is case sensitive in case of functions
The file extension in PHP file is .PHPThe file extension in JavaScript is .js
The use of PHP programs is to send and receive cookies with dynamic page creationThe use of JavaScript is in real time game app development.

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Similarity between PHP and JavaScript:

Apart from JavaScript vs PHP, the two technologies also share some similarities. They both are interpreted language and object-oriented. They both are framework supportable and case sensitive to the variables.

Some of the similarities of PHP and JavaScript are as follows

  • Existing code is easy to use
  • Case sensitive to the variables
  • Requiring an HTTP to execute
  • Fully support frameworks
  • Independent to the Platform
  • Libraries are existing in both platforms
  • Exceptional handling is the case of both technologies

Which one to choose? How to justify between PHP vs JavaScript?

Choosing the right back-end technologies all depends on the projects.

Choose PHP when your project includes

  • WordPress, Drupal and Joomla like CMS
  • Sybase, MariaDB, Oracle and PostgreSQL like servers
  • Solution stacks like LAMP

Choose JavaScript when your project includes:

  • SPAs (Dynamic Single Page Applications)
  • React JS, Angular JS, Ember.js like front-end technologies.
  • Solution stacks like MEAN (Express js, MongoDB and AngularJS)
  • Server Technologies like Node.js and Express.js

PHP or JavaScript, which is better for a career?

Both languages are good in their own way. When it comes to a career then you need to choose it according to your need.

Choose PHP:

  • If you are using LAMP technologies
  • If your planning is to develop an eCommerce or blogging website

Choose Node.js:

  • If you are planning for single-page app development
  • Large-scale project with heavy data load
  • Using JavaScript for the front-end development

Conclusion:

Here we end with JavaScript vs PHP explanation. This topic is very common among professional developers. Both technologies carry pros and cons that justify their use. It all depends upon your requirement, scope and vision of the project.

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