Question

How can I calculate how many of the elements in a array like this have a non-empty data field, in percetanges?

[elements] => Array
        (   [abc] => Object
                (                    
                    [data] => Array ([0] => 'something')                      
                )    

            [def] => Object
                (                    
                    [data] => Array ()

                )

            ...

In this exemple it would be 50% because there are 2 elements, and 1 of them has something in data…

Answer 1

$percent = count(array_filter($elements, function($ele){return !empty($ele->data);})) / count($elements) *100;