Counting words on a html web page using php

Question

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:

Answer 1

The one line below will do a case insensitive word count after stripping all HTML tags from your string.

Live Example

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:

1. Use strtolower() to make everything lower case.
2. Strip HTML tags using strip_tags()
3. Create an array of words used using str_word_count(). The argument 1 returns an array containing all the words found inside the string.
4. Use array_count_values() to capture words used more than once by counting the occurrence of each value in your array of words.
5. Use print_r() to display the results.