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The web development process explained: from concept to launch.

2 min read

PHP stands for “PHP: Hypertext Preprocessor”. It is a server-side scripting language primarily used for web development. PHP scripts are executed on the server, and the result is sent to the client’s browser as plain HTML.


🔍 Key Features of PHP

  1. Open Source: PHP is free to use and widely supported by a large community of developers.

  2. Server-Side Language: Code is executed on the server, and users only see the final output (HTML, CSS, JS).

  3. Cross-Platform: PHP runs on all major operating systems like Windows, Linux, macOS.

  4. Embedded in HTML: PHP can be embedded directly into HTML, making it easy to integrate with web pages.

  5. Database Integration: It supports many databases like MySQL, PostgreSQL, SQLite, and more.

  6. Large Standard Library: PHP has a wide range of built-in functions for file handling, form validation, and more.


🧠 How PHP Works

  1. A user requests a .php file via their browser.

  2. The server processes the PHP code using the PHP interpreter.

  3. The server sends the resulting HTML output back to the browser.

  4. The browser displays the page — it never sees the PHP code itself.

Example:

php
<?php echo "Hello, World!"; ?>

Output in browser: Hello, World!


🧩 Common Uses of PHP

  • Building dynamic web pages

  • Handling form submissions

  • Creating user authentication systems

  • Interacting with databases (e.g., MySQL)

  • Developing content management systems (CMS) like WordPress

  • REST APIs for web apps and mobile apps


🛠️ PHP vs Other Languages

Language Type Use Case
PHP Server-side Web development
JavaScript Client-side Interactivity in browsers
Python General-purpose Data science, web, scripting
Java General-purpose Enterprise applications

📈 Why Learn PHP?

  • Easy to learn for beginners

  • Huge job market for PHP developers

  • Powers major platforms like WordPress, Drupal, Magento

  • Scales well with frameworks like Laravel and Symfony


🧪 PHP Syntax Example

php
<?php $name = "Alice"; echo "Welcome, " . $name; ?>

Output: Welcome, Alice


🔚 Conclusion

PHP remains one of the most widely used server-side languages in the world. Its simplicity, flexibility, and robust community support make it a great choice for both beginner and professional web developers.


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