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Know the difference between Html and side-server languages.

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 HTML (Hypertext Markup Language) and server-side languages (such as PHP, Python, Ruby, etc.) serve distinct roles in web development.

HTML: HTML is a markup language used to structure and present content on the web. It defines the layout, headings, paragraphs, links, images, forms, and other elements of a web page. HTML is interpreted by web browsers to display content to users, but it doesn't handle dynamic logic or data processing.

Server-side languages: These languages are executed on the web server before the content is sent to the user's browser. They enable dynamic and interactive web experiences by processing data, interacting with databases, and generating HTML on the fly. They handle tasks like user authentication, data manipulation, and complex calculations.

Key differences:

1. Role: HTML focuses on structuring content and defining its presentation. Server-side languages handle dynamic functionality and data manipulation.

2. Execution: HTML is interpreted by the user's browser. Server-side languages are executed on the web server.

3. Interactivity: Server-side languages enable interactive features like form handling, user authentication, and real-time updates, which HTML alone cannot achieve.

4. Data Handling: Server-side languages can retrieve, process, and store data from databases or external APIs, while HTML is static and doesn't inherently handle data.

5. Control Flow: Server-side languages allow for complex control flow, loops, conditionals, and logic, while HTML primarily represents the static structure of a page.

6. Extensibility: Server-side languages can be used to create custom functions, classes, and libraries, providing greater flexibility in coding and solving specific problems.

7. User Input: Server-side languages can validate and process user input from forms, enhancing security and data integrity.

In summary, HTML provides the structure and presentation of web content, while server-side languages handle dynamic functionality and data processing, enhancing interactivity and customization on websites and web applications.

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