A server-side, or back-end, programming language that is both powerful and easy to use for the web. It is one of the most popular languages used for the web and has been used to create many powerful web frameworks, including the most popular, user-friendly, web platform used worldwide, WordPress as well as Magento.
PHP: Hypertext Preprocessor (or simply PHP) is a server-side scripting language designed for Web development, but also used as a general-purpose programming language. It was originally created by Rasmus Lerdorf in 1994, the PHP reference implementation is now produced by The PHP Group. PHP originally stood for Personal Home Page, but it now stands for the recursive acronym PHP: Hypertext Preprocessor.
PHP code may be embedded into HTML code, or it can be used in combination with various web template systems, web content management systems, and web frameworks. PHP code is usually processed by a PHP interpreter implemented as a module in the web server or as a Common Gateway Interface (CGI) executable. The web server combines the results of the interpreted and executed PHP code, which may be any type of data, including images, with the generated web page. PHP code may also be executed with a command-line interface (CLI) and can be used to implement standalone graphical applications.
PHP is a server side programming language. When a user requests a web page that contains PHP code, the code is processed by the PHP module installed on that web server. The PHP pre-processor then generates HTML output to be displayed on the user’s browser screen.
A WordPress user does not need to learn PHP in order to use, run, or manage a WordPress powered website.
Most users can use WordPress without ever learning to program or code in PHP. However, if a user wants to develop WordPress themes, plugins, or modify default behavior of WordPress by using actions and filters, then they would need to learn the basic syntax of PHP along with HTML and CSS.
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