Count the item from an array in PHP - php

Question

How can I count in a multidimensional array the number of element with a special condition ?
Array
(
[0] => Array
(
[item] => 'Banana'
)
[1] => Array
(
[item] => 'Banana'
)
[2] => Array
(
[item] => 'Cherry'
)
[3] => Array
(
[item] => 'Apple'
)
)
For example, for this array I should find 2 for Banana.
Si I tried:
$i=0;
foreach($array as $arr) {
if($arr[item]=='Banana') { $i++; }
}
Is there a better solution please ?
Thanks.

Answer 1

Method 1:
Using built-in functions - array_column and array_count_values:
print_r(array_count_values(array_column($arr,'item')));
Method 2:
Using foreach with simple logic of making your fruit as key and its count as value:
$arr = [
["item"=>"Banana"],
["item"=>"Banana"],
["item"=>"Cherry"],
["item"=>"Apple"]
];
$countArr = [];
foreach ($arr as $value) {
$item = $value['item'];
if(array_key_exists($item, $countArr)) // If key exists, increment its value
$countArr[$item]++;
else // Otherwise, assign new key
$countArr[$item] = 1;
}
print_r($countArr);
Final result in both case would be:
Array
(
[Banana] => 2
[Cherry] => 1
[Apple] => 1
)
So when you want Banana's count, you can get it like this:
echo $countArr['Banana'];

Answer 2

Use array_count_values(), it is pretty straight forward:
foreach($array as $arr) {
$new[] = $arr['item'];
}
print_r(array_count_values($new));
On a side note, there isn't anything wrong with your approach, unless you want to count all values. Also on a side note, I think you'll find a foreach() will eek out a slightly faster time than array_column(), especially on a large array.