Count number of values in an array where not 0

Question

I have an array and I'm trying to count the number of objects in the array where the the object key 'Value' is not 0.

array (
  0 => 
  array (
    'name' => 'item[110189]',
    'value' => '0',
    'primary_key' => '110189',
  ),
  1 => 
  array (
    'name' => 'item[110190]',
    'value' => '50',
    'primary_key' => '110190',
  ),
  2 => 
  array (
    'name' => 'item[110191]',
    'value' => '0',
    'primary_key' => '110191',
  ),
  3 => 
  array (
    'name' => 'item[110192]',
    'value' => '0',
    'primary_key' => '110192',
  ),
)

I've tried the following:

$input_items = array_filter($request->items, function($item){

            $count = 0;

            foreach($item as $i){
                if(! $i['value'] == 0){
                    $count = $count + 1;
                }
            }

            return $count;
        }); // it will return an array

        return $input_items;

I get an error saying invalid object 'Value' which to be honest I half expected.

Can you update your question with the var_export version of the array? — Praveen Kumar Purushothaman
– Praveen Kumar Purushothaman, Commented Nov 16, 2016 at 13:44
! $i['value'] == 0 to $item['value'] != 0 and in the callback $item['value'] no more loop needed, remove the foreach — JustOnUnderMillions
– JustOnUnderMillions, Commented Nov 16, 2016 at 13:45
Thanks @JustOnUnderMillions that seemed to work, I'll save that! — Dev.W
– Dev.W, Commented Nov 16, 2016 at 13:50

Praveen Kumar Purushothaman · Accepted Answer · 2016-11-16 13:50:49Z

Changed it this way:

$input_items = array_filter($arr, function ($item) {
    return ($item['value'] != 0);
});

Full Code

<?php
$arr = array (
  0 => 
  array (
    'name' => 'item[110189]',
    'value' => '0',
    'primary_key' => '110189',
  ),
  1 => 
  array (
    'name' => 'item[110190]',
    'value' => '50',
    'primary_key' => '110190',
  ),
  2 => 
  array (
    'name' => 'item[110191]',
    'value' => '0',
    'primary_key' => '110191',
  ),
  3 => 
  array (
    'name' => 'item[110192]',
    'value' => '0',
    'primary_key' => '110192',
  ),
);
$input_items = array_filter($arr, function ($item) {
    return ($item['value'] != 0);
});

print_r($input_items);

Output has only the non-zero entries:

Array
(
    [1] => Array
        (
            [name] => item[110190]
            [value] => 50
            [primary_key] => 110190
        )

)

Demo: http://ideone.com/LUbMSb

JustOnUnderMillions · Accepted Answer · 2016-11-16 13:50:31Z

1

You can use array_reduce:

print array_reduce($request->items, function($carry ,$item){
   if($item['value'] != 0){
      $carry++;
   }
   return $carry;
  },0);

answered Nov 16, 2016 at 13:50

JustOnUnderMillions

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