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


I am working on a project where I want to get the keyword density of the page based on the URL of that page. I did a lot but no help and scripts were found, I got a paid tool

but I do not really know what exactly is the "keyword density of the page" actually? And please tell me how we can create a PHP script that will bring keyword density of the web page.

Thanks

"keyword density" is only the frequency that words The percentage of the number is given as. The following PHP code will output the density of each word in the string, $ str . This indicates that keyword density is not a complex calculation, it can be done in some lines of PHP: 

   & gt; \ n"; }? & Gt; Example: Output:  
 of  = 5. density: 8% a = 4. density: 7% density = 3. density: 5% page = 3. density: 5% ... < / Code> 
 
 You can use the content of a webpage to bring (or). As an example, the following PHP code lists all keywords with more than 1% density on this webpage: 
 
  & lt ;? Php $ str = strip_tags (file_get_contents ("http://stackoverflow.com/questions/819,166")); $ Word = str_word_count (strtolower ($ str), 1); $ Word_count = array_count_values ​​(word $); Forex Currency ($ word_count $ key = & gt; $ val) {$ density = ($ val / count ($ word)) * 100; If ($ density & gt; 1) resonates "$ key - COUNT: $ val, DENSITY:" .number_format ($ density, 2). "%  & gt; \ n"; }? & Gt;  
 
 I hope it helps.

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