antoo

<?php
function walk_recursive_remove (array $array, callable $callback) { 
    foreach ($array as $k => $v) { 
        if (is_array($v)) { 
            $array[$k] = walk_recursive_remove($v, $callback); 
        } else { 
            if ($callback($v, $k)) { 
                unset($array[$k]); 
            } 
        } 
    } 
    return $array; 
}

$array = [[
    "" => "что то не нужное",
    "brand" => "Бренд",
    "code" => "Артикул",
    "price" => "цена",
    "quantity" => "кол-во",
    "name" => "нейм"
]];

$filtered = walk_recursive_remove($array, function ($value, $key) {
    return empty($value) || empty($key);
});

var_dump($filtered);

$json = file_get_contents('php://input'); 
echo $json;

function replaceFuckWords($message)
{
    $pattern = '/(ahole|ash0le|f u c k|bi.+ch)/ie';
    return preg_replace($pattern, "str_repeat('*', strlen('$1'))", $message);
}