How to check one of this element of array is empty or not?

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HTML

PHP

There are 2 "technical_id" which one of the status is "status" = 1 and the other one is "status" = 0. How to check if both submission status is not empty, its return true. If one of the submission status is empty, it return false. The problem is it just read one submission status for both ID.

What I have tried:

$ListTaskPerformance = array();

if (!array_key_exists($row['staff_id'],$ListTaskPerformance[$row['department']])){
$ListTaskPerformance[$row['department']][$row['staff_id']][$row['technical_id']] =  array();
			}

$ListTaskPerformance[$row['department']][$row['staff_id']]['technical_id'] = $row['technical_id'];
$ListTaskPerformance[$row['department']][$row['staff_id']]['performance_isvalid'] = false;

if ($row['technical_id'] > 0 && $row['hod_technical_status'] == 2){
$ListTaskPerformance[$row['department']][$row['staff_id']]['performance_isvalid'] = true;
}