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Summary  : In this tutorial, you will learn what PHP is , how it works, what it can do, and its benefits.

What is an introduction to PHP:

PHP is a general server-side programming language for web development.

PHP was originally an abbreviation for  Personal Home Page . For now, however, it stands for  Hypertext Preprocessor . This is an abbreviated abbreviation because the first word itself is an abbreviation.

PHP was created by Ramsus Lordoff in 1994. design-wp is currently maintained by the php development team  .

PHP is a server-side language

When you open a website in your web browser, for example: https://design-wp.com/

The web browser sends an HTTP request to the web server where  is located. The web server receives the request and responds with an HTML document.

In this example, the web browser is a client while the web server is. The client requests a page and the server requests it.

PHP runs on a web server, processes the request, and returns an HTML document.

PHP is a common language

When it comes to the purpose of programming languages, there are two main types: domain languages ​​and general languages.

Specific domain languages ​​are used in certain application domains. For example, SQL is a domain language. Relational databases are mainly used for data query. And SQL can not be used for other purposes.

PHP, on the other hand, is a common language because you can use PHP to develop different applications.

PHP is a multi-platform language

PHP can run on all major operating systems including Linux, Windows and macOS.

You can use PHP with all the leading web servers like Nginx, OpenBSD and Apache. Some cloud environments also support PHP, such as Microsoft Azure and Amazon AWS.

The pH is quite flexible. This is not limited to HTML processing. PHP has built-in support for creating PDF, GIF, JPEG and PNG images.

A notable feature of PHP is that it supports a wide range of databases including MySQL, PostgreSQL, MS SQL, db2, Oracle Database and MongoDB.

What can PHP do?

PHP has two main applications:

  • PHP server side scripting is suitable for developing dynamic websites and web applications.
  • Command Line Scripting – Like Python and Perl, you can run PHP scripts from the command line to perform administrative tasks such as sending emails and creating PDF files.

 

How PHP works

The following shows how PHP works:

PHP

How PHP works:

  • First, the web browser sends an HTTP request to the web server, for example, index.php.
  • Second, the PHP preprocessor on the web server processes the PHP code to generate the HTML document.
  • Third, the web server sends the HTML document to the web browser.

Advantages of PHP

Because PHP was originally designed for the web, it has many benefits for web development:

  • Simple – Learn and get started with PHP.
  • Fast – PHP websites usually run very fast.
  • Stable – PHP has been stable since time immemorial.
  • Open Source and Free – PHP is open source and free. This means that you do not have to pay a license to use PHP to develop software products.
  • Forum Support – PHP has an active online forum that helps you whenever you have a problem.

 

In the article What is PHP, written by the https://design-wp.com team , we tried to explain a comprehensive description of php programming to you users.