How can i remove empty array from multidimenssional array?

Question

I have array in which several child arrays exists. I want to remove those arrays which specifics values are empty.

Array ( 
[9] => Array ( [address_id] => 9 [firstname] => [lastname] =>  ) 
[10] => Array ( [address_id] => 10 [firstname] => the [lastname] => king  ) 
[11] => Array ( [address_id] => 11 [firstname] => the [lastname] => queen  ) 
)

You can see firstname and lastname is empty in [9] => Array(). So how can i remove those arrays which firstname has blank? I have tried array_filter() but didn't solve my issue.

Try using array_map and recursively unset the cells which have an empty lastname or firstname ? — Answers_Seeker
– Answers_Seeker, Commented Jan 19, 2016 at 16:12
Possible duplicate of How to remove empty values from multidimensional array in PHP? — Hardy Mathew
– Hardy Mathew, Commented Jan 19, 2016 at 16:17

AbraCadaver · Accepted Answer · 2017-12-21 15:51:51Z

2

Try array_filter() with an anonymous function:

$array = array_filter($array, function($v) { return !empty($v['firstname']); });

For firstname AND lastname:

$array = array_filter($array,
                      function($v) {
                        return !empty($v['firstname']) && !empty($v['lastname']);
                      });

Keep in mind empty() is also 0, false and null, so for just an empty string you might want return $v['firstname'] !== ''; or something similar.

edited Dec 21, 2017 at 15:51

answered Jan 19, 2016 at 16:19

AbraCadaver

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2 Comments

CodeGodie Over a year ago

what about lastname?

AbraCadaver Over a year ago

I don't know OP said "So how can i remove those arrays which firstname has blank?"

Andrew Coder · Accepted Answer · 2016-01-19 16:11:53Z

0

Assuming parent array is named $parent, you want to loop through and check conditionally for two empty fields, then unset indexes that match.

foreach ($parent as $key -> $value){
    if ($value['lastname'] == "" AND $value['firstname'] == ""){
        // Names not set, remove from parent array
        unset($parent[$key]);
    }
}

answered Jan 19, 2016 at 16:11

Andrew Coder

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Hardy Mathew · Accepted Answer · 2016-01-19 16:18:49Z

0

remove all the keys from nested arrays that contain no value, then remove all the empty nested arrays.

$postArr = array_map('array_filter', $postArr);
$postArr = array_filter( $postArr );

answered Jan 19, 2016 at 16:18

Hardy Mathew

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