写入数组[如果不工作]

Question

我正在尝试保存到数据库中的数据数组。条件(strtotime($row[date]) == strtotime(date('Y-m-d', $dat)) && $row[id_zadanie] == $tab[$i])为真，但不是记录零。可能有什么不对？

$query = "SELECT date, time, id_czaspracy, id_zadanie FROM ".$prefix."zadanie_czaspracy WHERE id_pracownik = ".$id_pracownik." order by date ASC";
$news1 = mysql_query($zapytanie) or die ('błąd: ' . mysql_error()); 
$daty = array(); 
while ($row = mysql_fetch_array($news1)) {


    $ile = 10;
    for($index = 0; $index<$ile; ++$index)
    {
        $dat = mktime(0, 0, 0, 1 , 1+$index, 2013);
        $id_date = date('Y-m-d', $dat);
        $daty[$id_date] = array('date' => date('Y-m-d', $dat), 'time' => array());

        $tab = array(1,2,3,4,5);
        $n = count($tab);
        for ($i=0;$i<$n; $i++) {

            if(strtotime($row[date]) == strtotime(date('Y-m-d', $dat)) && $row[id_zadanie] == $tab[$i]) {
            echo 'Id_zad:'.$row[id_zadanie].' Time:'.$row[time].' Data:'.strtotime($row[date]).' Str: '.strtotime(date('Y-m-d', $dat)).'<br/>';
            $daty[$id_date]['time'][] = array('time' => $row['time']); // DONT WORK
            } else {
            $daty[$id_date]['time'][] = array('time' => 0);
            }
        }
    }
}

阵列：

Array
(
    [2013-01-01] => Array
        (
            [date] => 2013-01-01
            [czas] => Array
                (
                    [0] => Array
                        (
                            [czas] => 0
                        )

                    [1] => Array
                        (
                            [czas] => 0
                        )

                    [2] => Array
                        (
                            [czas] => 0
                        )

                    [3] => Array
                        (
                            [czas] => 0
                        )

                    [4] => Array
                        (
                            [czas] => 0
                        )

                )

        )

    [2013-01-02] => Array
...

查询结果：

Id_zad:5 Czas:5 Data:1356994800 Str: 1356994800
Id_zad:4 Czas:6 Data:1356994800 Str: 1356994800
Id_zad:3 Czas:4 Data:1357081200 Str: 1357081200
Id_zad:4 Czas:8 Data:1357081200 Str: 1357081200
Id_zad:4 Czas:8 Data:1357167600 Str: 1357167600