Counting words on a html web page using php
I need a PHP script which takes a URL of a web page and then echoes how many times a word is mentioned.
Example
This is a generic HTML page:
<html>
<body>
<h1> This is the title </h1>
<p> some description text here, <b>this</b> is a word. </p>
</body>
</html>
This will be the PHP script:
<?php
htmlurl="generichtml.com";
the script here
echo(result);
?>
So the output will be a table like this:
WORDS Mentions
This 2
is 2
the 1
title 1
some 1
description 1
text 1
a 1
word 1
This is something like the search bots do when they are surfing the web, so, any idea of how to begin, or even better, do you have a PHP script which already does this?
Answer
The one line below will do a case insensitive word count after stripping all HTML tags from your string.
print_r(array_count_values(str_word_count(strip_tags(strtolower($str)), 1)));
To grab the source code of a page you can use cURL or file_get_contents()
$str = file_get_contents('http://www.example.com/');
From inside out:
- Use strtolower() to make everything lower case.
- Strip HTML tags using strip_tags()
- Create an array of words used using str_word_count(). The argument
1returns an array containing all the words found inside the string. - Use array_count_values() to capture words used more than once by counting the occurrence of each value in your array of words.
- Use print_r() to display the results.