I need help sorting and counting instances of the words in a string.
Lets say I have a collection on words:
happy beautiful happy lines pear gin happy lines rock happy lines pear
How could I use php to count each instance of every word in the string and output it in a loop:
There are $count instances of $word
So that the above loop would output:
There are 4 instances of happy.
There are 3 instances of lines.
There are 2 instances of gin....
Use a combination of str_word_count() and array_count_values():
$str = 'happy beautiful happy lines pear gin happy lines rock happy lines pear ';
$words = array_count_values(str_word_count($str, 1));
print_r($words);
gives
Array
(
[happy] => 4
[beautiful] => 1
[lines] => 3
[pear] => 2
[gin] => 1
[rock] => 1
)
The 1 in str_word_count() makes the function return an array of all the found words.
To sort the entries, use arsort() (it preserves keys):
arsort($words);
print_r($words);
Array
(
[happy] => 4
[lines] => 3
[pear] => 2
[rock] => 1
[gin] => 1
[beautiful] => 1
)
Try this:
$words = explode(" ", "happy beautiful happy lines pear gin happy lines rock happy lines pear");
$result = array_combine($words, array_fill(0, count($words), 0));
foreach($words as $word) {
$result[$word]++;
}
foreach($result as $word => $count) {
echo "There are $count instances of $word.\n";
}
Result:
There are 4 instances of happy.
There are 1 instances of beautiful.
There are 3 instances of lines.
There are 2 instances of pear.
There are 1 instances of gin.
There are 1 instances of rock.
