Laravel | Filter null values from an associative array

Question

I have an associative array like this:

 $myarray = array(
                'key1' => 'value1'
                'key2' => 'value1','value2','value3', null ,'value4'
                 null
                'key4' => null ,'value2','value3', null
                'key5'
                 null
                );

I want to remove the null values and I tried this:

$collection = collect($myarray);

            $filtered = $collection->filter(function ($value, $key) {
                return $value != null;
            });

The result is this:

     $myarray = array(
                'key1' => 'value1'
                'key2' => 'value1','value2','value3', null ,'value4'
                'key4' => null ,'value2','value3', null
                'key5'
                );

But my desired result is like this:

     $myarray = array(
                'key1' => 'value1'
                'key2' => 'value1','value2','value3','value4'
                 null
                'key4' => 'value2','value3'
                'key5'
                 null
                );

How can I do this?

PS: I'm using Laravel 5.4.36

Can't confirm. The result would be a collection. Even if you do $filtered->all();, the result is [ "key1" => "value1" "key2" => "value1" 0 => "value2" 1 => "value3" 3 => "value4" 5 => "value2" 6 => "value3" 8 => "key5" ] — shaedrich
– shaedrich, Commented May 27, 2021 at 11:16
I did an array_push and view the JSON on chrome developer tools . That was my result from there. — MoondoesSO
– MoondoesSO, Commented May 27, 2021 at 12:35

Stephen Lewis · Accepted Answer · 2021-05-27 11:18:29Z

1

Your code removes null values from the top-level array. Your "desired result" removes null values from the nested arrays.

Try this instead:

foreach ($myarray as $key => $value) {
    if (is_null($key) || !is_array($value)) {
        continue;
    }

    $myarray[$key] = array_filter($value);
}

answered May 27, 2021 at 11:18

Stephen Lewis

2552 silver badges7 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

MoondoesSO Over a year ago

This does work, well explained and concise. Thanks a lot!

Collectives™ on Stack Overflow

Laravel | Filter null values from an associative array

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related