<?php
 
// your code goes here
function empty_scan_array($array){
    foreach ($array as $sarray) {
        if (empty($sarray)){        
            return true;    // Проверяет второй уровень
        }else{
            return false;
        }
    } 
}
 
$extra_fields_active = array(array());
 
if (empty_scan_array($extra_fields_active)){
    echo'<h1> <b> массив ПУСТОЙ </b></h1>';
}else{
    echo'<h1> <b> массив ЗАПОЛНЕН</b></h1>';
}

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