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What Is PHP

What Is PHP?

The fundamental technologies and language used for web development are HTML, CSS, and JavaScript.

PHP is one of the most knowing programming languages used for web development.

PHP (recursive acronym for PHP: Hypertext Preprocessor) is a widely used open-source general-purpose scripting language that is especially suited for web development and can be embedded into HTML.

PHP is a Scripting Language

Scripting languages are a subset of coding languages (PHP and JavaScript) used to automate processes that otherwise would need to be executed step-by-step in a site’s code every time they occur.

Scripting languages like PHP are distinct from markup languages like HTML and CSS in the sense that while HTML and CSS determine the layout and look of web pages, scripting languages tell a static web page (built with HTML and CSS) to “do” specific actions.

PHP is used for Server-Side Scripting

PHP is typically used as a server-side language (as opposed to a language like JavaScript that is generally executed on the client-side).

The term client-side refers to website activity that takes place locally on a user’s computer through the user’s web browser.

Client-side technologies and languages like HTML, CSS, and JavaScript give instructions that web browsers can parse and translate into content on your computer screen.

The processes scripted by JavaScript take place on the client-side, which provides instructions that can be understood by and executed in your web browser.

Client-side means what you see when you are using the internet.

Server-side activity involves a web browser sending requests to a web server, which then responds to the request with HTML code that can be processed and rendered by the web browser and turned into content on the user’s screen.

A client-side scripting language like JavaScript can automate tasks involving content that is already available to a user in their web browser.

A server-side scripting language like PHP is used to request content from a website’s server or database and make that content visible and accessible for the website’s user.

PHP and WordPress

PHP functionality plays a particularly large role when it comes to WordPress development.

While it is possible to build functional WordPress websites without knowing PHP.

Within WordPress, PHP is the engine behind custom WordPress themes and plugins.

When creating these kinds of custom WordPress features, PHP is the scripting language used to communicate with the WordPress websites server and deliver requested content and actions to the user’s screen.

If you build a WordPress website using template themes and plugins you will still be passively implementing PHP.

To create your own themes, plugins, or even alter the WordPress default behavior, you will need to develop hands-on PHP skills.

WordPress is a content management system that allows you to create and publish digital content online.

Taking advantage of learning PHP will make you more qualified to carve out a niche as a serious WordPress developer.


PHP will give you access to the lucrative world of WordPress customization.

WordPress Themes and Plugins are written with PHP.