Empty or null array value not filter or remove from array list

Question

I I have tried to remove null or empty values from array listing but not working.

Following is my array output..

Array
(
    [0] => Array
        (
            [post_id] => 1173
            [post_content] => Rocking Tips
            [comment_id] => 1173
            [comment_content] => Nice Post 
            [comment_date] => 
            [user_id] => 
            [username] => 
            [email] => 
            [first_name] => 
            [last_name] => 
        )

    [1] => Array
        (
            [post_id] => 
            [post_content] => 
            [comment_id] => 
            [comment_content] => 
            [comment_date] => 
            [user_id] => 
            [username] => 
            [email] => 
            [first_name] => 
            [last_name] => 
        )

    [2] => Array
        (
            [post_id] => 1173
            [post_content] => Rocking Tips
            [comment_id] => 1176
            [comment_content] => WOnder
            [comment_date] => 2020-05-21 21:10:04
            [user_id] => 168
            [username] => kkkk20
            [email] => [email protected]
            [first_name] => sam
            [last_name] => test

            [reply] => Array
                (
                    [comment_id] => 1177
                    [comment_details] => Thank YOu
                    [comment_date] => 2020-05-21 21:12:14
                    [user_id] => 179

                    [username] => test20201
                    [email] => [email protected]
                    [replay] => 
                )

        )

)

I have tried to remove empty array value using array_filter() but still empty value is showing when i print my array.

I also tried like,

$filtered = array_filter($myArray, function($var){return !is_null($var);} );
echo "<pre>List Data";print_r($filtered);

I want to remove 1 index array from list

Barmar · Accepted Answer · 2020-05-21 23:56:14Z

2

An array whose values are empty strings is not the same as NULL. You need to test the values.

You can call array_filter() on the element. This will return all the non-empty values in the array; if all the values are empty it will return an empty array, which will be condidered falsey by the outer array_filter().

$filtered = array_filter($myArray, function($var){return array_filter($var);} );

Or you could just check whether a specific element such as post_id is empty:

$filtered = array_filter($myArray, function($var){return !empty($var['post_id']);} );

answered May 21, 2020 at 23:56

Barmar

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