Searching for repeated words in string :)

[lopez86100]

I've got big text in a string. I don't know how to do that: I want to find 3 words that are most repeated in this string. I'm creating search engine for my website so I need it. Can anyone help me. Maybe there are some ready solutions (someone has created it before me) but I can't find it. please... please.... help me :) :)

[spelltwister]

I  would explode the sentance by the space, causing each individual word to be placed into an array, then you can filter out words that are smaller than 3 letters or something and then you can sort the array.  After the array is sorted, you can easily find which are repeated the most.

[kenrbnsn]

As the above poster suggests, use the [url=http://www.php.net/explode]explode()[/url] function to get all the words in the sentence into an array, then use the function [url=http://www.php.net/array_count]array_count()[/url] to get the frequency of each word in another array. You can then sort that array.

Ken

[Orio]

[code]<?php //$str holds the string

$words = str_word_count($str, 1);
$frq = array_count_values($words);
asort($frq);
foreach ($frq as $word => $times)
echo $word." was found ".$times." times.<br>";

?>[/code]

Orio.

[lopez86100]

Thanks , it's so easy - when I'm reading this now. One more time Thanks guys.