Getting most common words from array

I need a php script to find repeat words and output it.

Example text submitted from a textarea box:

drink energy
juice drink
hot cakes
fruit baskets
peanut butter and jelly
energy juice
fine wine
berry jelly

should return:

drink energy
juice drink
peanut butter and jelly
energy juice
berry jelly

because energy, juice, jelly and drink were most common, it should return those values from an array and also count it.


LVL 10
ray-solomonAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

TeRReFCommented:
Something like this should work:
<?php

        $words = array('drink energy', 'juice drink', 'hot cakes', 'fruit baskets', 'peanut butter and jelly', 'energy juice', 'fine wine', 'berry jelly');
        $s = implode(' ', $words);
        $singlewords = array_unique(explode(' ', $s));
        //print_r($singlewords);
        //print($s);
        foreach($singlewords as $word) {
                preg_match_all('/'.$word.'/i', $s, $matches);
                $wordcount[$word] = count($matches[0]);
        }
        arsort($wordcount);
        $final_array = array();
        foreach($wordcount as $word=>$count) {
                foreach($words as $match) {
                        if (stripos($match, $word) !== false && !in_array($match, $final_array))
                                $final_array[] = $match;
                }
        }
        print_r($final_array);


?>
0
ray-solomonAuthor Commented:
Thanks TeRRef, but I get this error message:
Fatal error: Call to undefined function: stripos() in /home/...
0
TeRReFCommented:
CHange this line:
                      if (stripos($match, $word) !== false && !in_array($match, $final_array))
to
                      if (strpos(strtolower($match), strtolower($word)) !== false && !in_array($match, $final_array))
0
Cloud Class® Course: Ruby Fundamentals

This course will introduce you to Ruby, as well as teach you about classes, methods, variables, data structures, loops, enumerable methods, and finishing touches.

ray-solomonAuthor Commented:
Here is what the array contains:

Array ( [0] => drink energy [1] => juice drink [2] => peanut butter and jelly [3] => berry jelly [4] => energy juice [5] => fine wine [6] => fruit baskets [7] => hot cakes )


it should look like this:

Array ( [0] => drink energy [1] => juice drink [2] => peanut butter and jelly [3] => berry jelly [4] => energy juice )


because:
fine wine, fruit baskets and hot cakes do not contain any words that have been repeated two or more times in the array.

Hope that makes sense. BTW, thanks for helping me so far.
0
ray-solomonAuthor Commented:
Is there a way to make it output the most common words like I showed in my original question?
0
TeRReFCommented:
Sure. Sorry, I overlooked your last comment.
Here you go:

<?php

        $words = array('drink energy', 'juice drink', 'hot cakes', 'fruit baskets', 'peanut butter and jelly', 'energy juice', 'fine wine', 'berry jelly');
        $s = implode(' ', $words);
        $singlewords = array_unique(explode(' ', $s));
        //print_r($singlewords);
        //print($s);
        foreach ($singlewords as $word) {
                preg_match_all('/'.$word.'/i', $s, $matches);
                if (count($matches[0]) > 1)
                        $wordcount[$word] = count($matches[0]);
        }
        arsort($wordcount);
        $final_array = array();
        foreach ($wordcount as $word=>$count) {
                foreach ($words as $match) {
                        if (strpos(strtolower($match), strtolower($word)) !== false && !in_array($match, $final_array))
                                $final_array[] = $match;
                }
        }
        print_r($final_array);


?>

0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
ray-solomonAuthor Commented:
Thank you! Awsome.
0
TeRReFCommented:
You're welcome.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
PHP

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.