[PHP] 二維動態陣列

現在先假設是取了一堆date的陣列 格式為"YY-MM-DD"

    $dateQuery = "select date from `healthrecord_testresult_sleep` where `uid`=".$uid." ORDER BY `rid` DESC";
    $date = mysql_query($query) or die('Query failed : ' . mysql_error());

    $allDate = array();

    while($dateArray = mysql_fetch_assoc($date))
    {
        $allDate[] = $dateArray['date'];
    }


    $dateYear = array();
    $dateMonth = array();
    $dateDay = array();
    // 怕會把重複的value加到年、月、日的array中,故以in_array()去過濾
    foreach($allDate as $value)
    {
        list($year, $month, $day) = split('[/.-]', $value);
        if(!in_array($year, $dateYear))
        {
            $dateYear["$year"] = $year;
        }
        if(!in_array($month, $dateMonth))
        {
            $dateMonth["$month"] = $month;
        }
        if(!in_array($day, $dateDay))
        {
            $dateDay["$day"] = $day;
        }
    }
    print_r($dateYear);
    echo '<br/>';
    print_r($dateMonth);
    echo '<br/>';
    print_r($dateDay);
    echo '<br/>';
    echo 'Year '.$dateYear['2010'];