PHP (Hypertext Preprocessor) is a server-side scripting language used to create dynamic web pages and web applications. PHP is widely used for developing web applications, content management systems (CMS), e-commerce websites, and various other web-based applications.
PHP was created in 1994 by Rasmus Lerdorf and has since become one of the most popular programming languages on the web, powering over 80% of all websites on the internet.
Some key features of PHP include:
- Easy integration with HTML and other web technologies
- Cross-platform compatibility
- Support for a wide range of databases, including MySQL, Oracle, and PostgreSQL
- Built-in security features, such as protection against SQL injection attacks
- Support for object-oriented programming (OOP)
- Large and active community of developers and users
To get started with PHP, you’ll need to install a web server and a PHP interpreter on your computer. There are several popular web servers available, including Apache, Nginx, and IIS, and PHP can be installed on all of them.
Once you have PHP installed, you can start writing PHP scripts to create dynamic web pages. PHP code is typically embedded within HTML code using special tags, such as <?php … ?>. When a user requests a web page containing PHP code, the web server runs the PHP interpreter to execute the code and generate the HTML that is sent back to the user’s browser.
PHP has a vast library of functions and extensions, making it easy to perform common web development tasks such as form validation, file uploading, and database integration. Additionally, PHP frameworks such as Laravel, Symfony, and CodeIgniter provide developers with a set of tools and best practices for building complex web applications quickly and efficiently.
Overall, PHP is a versatile and powerful language that is essential for anyone looking to develop web-based applications.