Update value in array with value of same index from another array

Question

Given array like this:

$products = array([0] => Apple, [1] => Orange, [2] => Orange, [3] => Strawberry, [4] => Orange, [5] => Mango, [6] => Orange, [7] => Strawberry, [8] => Orange, [9] => Orange, [10] => Orange);

I need to count number of similar values and receive array where each unique value will appear once along with the count of its occurrences from original array. For example the new array should look like this:

$new_products = array([0] => "Apple 1", [1] => "Orange 7", [2] => "Strawberry 2", [3] => "Mango 1");

Using functions below I can receive 2 arrays:

array_keys(array_count_values($products))); // Return array of unique values
array_values(array_count_values($products))); // Return array with count for each unique values

Will return:

Array ( [0] => Apple 1 [1] => Orange [2] => Strawberry  [3] => Mango )
Array ( [0] => 1 [1] => 7 [2] => 2 [3] => 1 )

I cant find a way to merge the values so I get the array that looks like $new_products array in my example.

$result = array_map(function ($i1, $i2) { return $i1. ' ' . $i2; }, $ar_keys, $ar_counts); — splash58
– splash58, Commented Apr 5, 2016 at 12:32
@Uchiha, sometimes it's so nice to read in my native language :) — splash58
– splash58, Commented Apr 5, 2016 at 12:47

Federkun · Accepted Answer · 2016-04-05 12:37:35Z

5

Just iterate array_count_values with foreach.

$new_products = [];
foreach (array_count_values($products) as $name => $count) {
  $new_products[] = $name. ' '. $count;
}

answered Apr 5, 2016 at 12:37

Federkun

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Comments

aslawin · Accepted Answer · 2016-04-05 12:40:48Z

Try this function:

<?php

$products = array(
    0 => 'Apple', 
    1 => 'Orange', 
    2 => 'Orange', 
    3 => 'Strawberry', 
    4 => 'Orange', 
    5 => 'Mango', 
    6 => 'Orange', 
    7 => 'Strawberry', 
    8 => 'Orange', 
    9 => 'Orange', 
    10 => 'Orange'
);

function getNamesWithCountArray($array)
{
    $result = array();
    $countedValues = array_count_values($array);

    foreach($countedValues as $key => $value)
        $result[] = $key . ' ' . $value;

    return $result;
}

$new_products = getNamesWithCountArray($products);

echo '<pre>';
print_r($new_products);

Result of print_r($new_products); is:

Array
(
    [0] => Apple 1
    [1] => Orange 7
    [2] => Strawberry 2
    [3] => Mango 1
)

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