如何过滤空/ null多维数组

Question

[ array:26[ 0 => array:2 [ 0=>"array:2 means array is not empty" ] 1 => array:1 [ 0=>"array:1 means array is empty or null" ] ]

array 1 upto 26 are empty arrays which will be filtered using array_filter but the problem was it cannot filter empty arrays.

The goal was this - return !empty($arr), using array_filter. But still the empty arrays are not filtered. I tried using array_values and then apply array_filter but still the result was the same. Any Ideas on how to filter these empty arrays? That would be a greater help for me thank you! by the way this is a multidimensional array. ]1

Answer 1

The position 1 of the array is not empty, it has an element which is an array(0 => '') try:

function notEmpty($a)
{
    if(is_array($a))
        return array_filter($a, "notEmpty");
    return !empty($a);
}
$result = array_filter($yourarray, "notEmpty");

ps: empty(array(0 => '')) evaluates to false as empty('') evaluates to true