Sort and Count Unique value of Array

Question

I have a array with thousand values.

$arr = array('Stone', 'Gem', 'Star', ..., 'Star', 'Rock', 'Salt', ..., 'Metal', 'Cotton', 'Gem',...);

my problem now is how can I count the values of the array.. for example:

Stone = 234
Gem = 231
Star = 123
Rock = 98
Salt = 265
...

any idea about this?

array_count_values() documentation link, returns the required array and the input array rests untouched — Viral
– Viral, Commented Sep 3, 2015 at 5:59
possible duplicate of Count unique value from associative array — Sougata Bose
– Sougata Bose, Commented Sep 3, 2015 at 6:01

silkfire · Accepted Answer · 2015-09-03 06:02:57Z

3

Like this:

$array_frequency = array_count_values($array);

The keys are the unique values of your input array, and their respective values is the number of occurrences of that value in the input array.

answered Sep 3, 2015 at 6:02

silkfire

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Comments

mario.van.zadel · Accepted Answer · 2015-09-03 06:01:32Z

2

$occurrences = array_count_values($arr);

will result in something like:

Array
(
    [Stone] => 234
    [Gem] => 231
    [Star] => 123
)

answered Sep 3, 2015 at 6:01

mario.van.zadel

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