Online PHP editor | refs for rUdcD

<?php function nullifyEmptyArrayValues(array $array, array $keys) { foreach ($keys as $key) { if (array_key_exists($key, $array) && $array[$key] === '') { $array[$key] = null; } } return $array; } $row = [ 'first' => 'foo', 'second' => '', 'third' => '', 'fourth' => 'bar', ]; var_dump(nullifyEmptyArrayValues($row, ['third']));