Parsing
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When you type in, a URL in the address bar of your browser, like for example, http://www.fairgound.com and then you click Enter, what you’re actually doing is, you are sending a request to a particular web server that keeps the URL that you typed in and then it gets the contents from the specified location of that particular web page. What you are seeing in the browser is the HTML result of the actual code of the page you requested not the actual code most specially when the page uses server side scripting to show the output of the page. Parsing is the process of converting the actual code to HTML. Parser engines of the web servers are responsible for the conversion. Behind the HTML output that you are seeing in your browser is a maze of long, complex Php code. What happens is you request the URL, the web page is parsed, then server sends back the HTML generated before the server sends the HTML output to your browser.