Q: What is php and website loading?
A: Hi Ravi. PHP is a web site programming language to create dynamic web pages. I don't know much more about it, since I'm not a programmer, but you can read more about it here in Wikipedia.
In terms of website loading, I'm assuming you are referring to the time it takes a website to show up in your browser. Generally, faster is better, as you don't want your visitors to lose interest as they're waiting for your site to load and then they leave and go to another site.
Here's a great tool to use to analyze your site's download speed, Web Page Analyzer. They will also make recommendations on what you can do to your site to increase the download speed.
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