How to count no of non-empty array value in multidimensional array? [duplicate]

Question

[pending_work] => Array
        (
            [0] => Array
                (
                    [tmp_name] => D:\xampp\tmp\php4B33.tmp
                    [error] => 0
                    [name] => Chrysanthemum.jpg
                    [type] => image/jpeg
                    [size] => 879394
                )

            [1] => Array
                (
                    [tmp_name] => 
                    [error] => 4
                    [name] => 
                    [type] => 
                    [size] => 0
                )

            [2] => Array
                (
                    [tmp_name] => 
                    [error] => 4
                    [name] => 
                    [type] => 
                    [size] => 0
                )

            [3] => Array
                (
                    [tmp_name] => 
                    [error] => 4
                    [name] => 
                    [type] => 
                    [size] => 0
                )

        )

This is the above array which is giving array values. As you can see there is only one 'tmp_name' field which is not empty and other are empty. How can i check and count wether atleast one of tmp_name is not empty ?. I have four input types for uploading images and I want to check for atleast one of the image should be uploaded.

Iterate over an array with a foreach. You know how to use foreach? — u_mulder
– u_mulder, Commented Aug 12, 2017 at 10:00
Please try to come up with a user name that is acceptable first. — localheinz
– localheinz, Commented Aug 12, 2017 at 10:01

JYoThI · Accepted Answer · 2017-08-12 10:06:43Z

1

use array_column and array_filter

if(count(array_filter(array_column($array['pending_work'],'tmp_name')))>0){

 }

answered Aug 12, 2017 at 10:06

JYoThI

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Comments

arkascha · Accepted Answer · 2017-08-12 10:07:04Z

The best approach, offering most flexibility, is a filter strategy:

<?php
$pending_work = [
     [
        'tmp_name' => 'D:\\xampp\\tmp\\php4B33.tmp',
        'error' => 0,
        'name' => 'Chrysanthemum.jpg',
        'type' => 'image/jpeg',
        'size' => 879394
    ],
    [
        'tmp_name' => null,
        'error' => 4,
        'name' => null,
        'type' => null,
        'size' => 0
    ],
    [
        'tmp_name]'=> null,
        'error' => 4,
        'name' => null,
        'type' => null,
        'size' => 0
    ],
    [
        'tmp_name' =>  null,
        'error' => 4,
        'name' => null,
        'type' => null,
        'size' => 0
    ]
];
$filtered_work = array_filter($pending_work, function($entry) {
    return !empty($entry['tmp_name']);
});
print_r($filtered_work);

The output of above code obviously is:

Array
(
    [0] => Array
        (
            [tmp_name] => D:\xampp\tmp\php4B33.tmp
            [error] => 0
            [name] => Chrysanthemum.jpg
            [type] => image/jpeg
            [size] => 879394
        )

)

You can count entries in there or use the result, whatever.

Sethu · Accepted Answer · 2018-10-08 11:55:00Z

0

The function array_filter() alone will not remove empty sub-arrays from a multi-dimensional array, An additional function needs to be used with array_filter() function to remove empty elements from multidimensional array in PHP.

array_map() function sends the elements of array to the callback function.
array_filter() function filters the elements of array using a callback function.

The following code will remove all empty array elements from multidimensional array in PHP:

<?php
$array = array_map('array_filter', $array);
$array = array_filter($array);

answered Oct 8, 2018 at 11:55

Sethu

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Comments

Glorfindel · Accepted Answer · 2023-03-08 09:07:09Z

0

Use below code array_filter helps in such conditions.

Click here for demo

$array = [
     [
        'tmp_name' => 'D:\\xampp\\tmp\\php4B33.tmp',
        'error' => 0,
        'name' => 'Chrysanthemum.jpg',
        'type' => 'image/jpeg',
        'size' => 879394
    ],
    [
        'tmp_name' => null,
        'error' => 4,
        'name' => null,
        'type' => null,
        'size' => 0
    ],
    [
        'tmp_name]'=> null,
        'error' => 4,
        'name' => null,
        'type' => null,
        'size' => 0
    ],
    [
        'tmp_name' =>  null,
        'error' => 4,
        'name' => null,
        'type' => null,
        'size' => 0
    ]
];
$result_arary = array_filter($array, function($arr) {
    return !empty($arr['tmp_name']);
});
echo count($result_arary);
print_r($result_arary);

edited Mar 8, 2023 at 9:07

Glorfindel

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answered Aug 12, 2017 at 10:10

Kamran Jabbar

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