The document provides an overview of PHP and its capabilities compared to other web technologies. It discusses how PHP allows for dynamic content and user interactivity on websites, unlike static HTML. It also summarizes HTTP and the client-server model, and how PHP integrates as a common gateway interface (CGI) to enable server-side scripting. Key topics covered include the history of HTML/XHTML, HTTP request/response formats, and how PHP addresses limitations of static websites by running on the server-side.
8. A representation of client-server talk - 1 Client Server To Server, “Can you please give me index.htm?”
9. A representation of client-server talk - 2 Client Server To Client, “ Sure, here it is...” Contents of index.htm
10. A representation of client-server talk - 3 Client Server Wow... I am lucky to get index.htm so fast! Actual webpage, that can be displayed on browser
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27. A representation of client-server talk - 3 Client Server Wow... I am lucky to get index.htm so fast! Actual webpage, that can be displayed on browser
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