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PHP Introduction

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PHP, which stands for "Hypertext Preprocessor," is an open-source, server-side scripting language designed for web development. Initially created in 1994 by Rasmus Lerdorf, PHP has evolved to become one of the most popular languages for building dynamic websites and web applications.


Key Features of PHP:

Server-Side Execution: PHP scripts run on the server, enabling the creation of dynamic page content and interactions before sending the results to the user's browser.

Integration with HTML: PHP can be embedded directly within HTML, making it simple to create and maintain web pages with dynamic content.

Database Support: PHP works seamlessly with popular databases like MySQL, PostgreSQL, and many others, allowing for robust and scalable web applications.

Cross-Platform Compatibility: PHP runs on various platforms, including Windows, Linux, and macOS, and works with major web servers such as Apache, Nginx, and Microsoft IIS.

Extensive Libraries and Frameworks: PHP offers a range of frameworks (like Laravel, Symfony, and CodeIgniter) and built-in functions, making web development faster and more efficient.

Example
<!DOCTYPE html>
<html>
<body>
<?php
echo "Hello, World!";
?>
</body>
</html>
Try it yourself

Common Use Cases:


  • Building dynamic websites and web applications
  • Developing content management systems (CMS) like WordPress
  • Creating e-commerce platforms, web forms, and user authentication systems
  • Generating dynamic content for web pages, such as forms, shopping carts, and data-driven websites
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