What is Keyword Density and how to create a script in PHP?

Question

I am working on a project where I have to find out the keyword density of thepage on the basis of URL of that page. I googled a lot but no help and scripts were found, I fou

Answer 1

Keyword density just means the percentage that the keywords appear in the content versus rest of the text. In general, it's also a fairly useless metric for SEO. I wouldn't bother building a script for it as you'd be better off concentrating on other metrics. You might find this reference useful.