PHP 通过唯一 ID 分组进行编号

Question

我想自动编号，但按用户组

查询:

$query = "select distinct(DATE_FORMAT(a.in_time, '%Y%m%d')) as in_time, a.user_id, a.notes, b.nama from attendance a left join dat_login b on(a.user_id=b.ID) where DATE_FORMAT(a.in_time, '%Y')='2017' and DATE_FORMAT(a.in_time, '%M')='April' and id_shop!=2 order by b.nama asc";
$querynm = "select distinct(b.nama) as nama from attendance a left join dat_login b on(a.user_id=b.ID) where DATE_FORMAT(a.in_time, '%Y')='2017' and DATE_FORMAT(a.in_time, '%M')='April' group by b.nama order by b.nama asc";
$stid = mysqli_query($conn, $query) or die (mysqli_error($conn));
$stnm = mysqli_query($conn, $querynm) or die (mysqli_error($conn));

结果:

$alphabet_start = 'A';
while ($data = mysqli_fetch_assoc($stid)) {
$data['user_id'] += 1;
$no_cell = 11;
echo $data['nama'] . " ";
echo $data['user_id'] . " ";
  if ($data['notes']=="") {
    echo chr(ord("A") + date('d', strtotime($data['in_time']))) . $no_cell . " - " . chr(ord("A") + date('d', strtotime($data['in_time']))) . ". " . "Masuk <br>";
  } else if ($data['notes']=="S") {
    echo chr(ord("A") + date('d', strtotime($data['in_time']))) . $no_cell . " - " . chr(ord("A") + date('d', strtotime($data['in_time']))) . ". " . "Sakit <br>";
  } else if ($data['notes']=="L") {
    echo chr(ord("A") + date('d', strtotime($data['in_time']))) . $no_cell . " - " . chr(ord("A") + date('d', strtotime($data['in_time']))) . ". " . "Libur <br>";
  }
$alphabet_start++;
$no_cell++;
$data['user_id']++;
}

但是，值显示如下:

我希望值显示如下:

正如您所看到的，下一个名称中的数字正在变化，该怎么办？抱歉我的语法不好。先谢谢了:)

Answer 1

你的代码有点令人困惑，但我想我明白你的意思。你可以这样做:

$alphabet_start = 'A';
$userID = "";
$cells = array();
$cellNum = 11;

while ($data = mysqli_fetch_assoc($stid)) {
    $data['user_id'] += 1;

    if (in_array($data['user_id'], $cells)) {
        $no_cell = $cellNum;
    } else {
        $no_cell = ($cellNum += 1);
        $cells[] = $data['user_id'];
    }

    echo $data['nama'] . " ";
    echo $data['user_id'] . " ";
    if ($data['notes'] == "") {
        echo chr(ord("A") + date('d', strtotime($data['in_time']))) . $no_cell . " - " . chr(ord("A") + date('d', strtotime($data['in_time']))) . ". " . "Masuk <br>";
    } else if ($data['notes'] == "S") {
        echo chr(ord("A") + date('d', strtotime($data['in_time']))) . $no_cell . " - " . chr(ord("A") + date('d', strtotime($data['in_time']))) . ". " . "Sakit <br>";
    } else if ($data['notes'] == "L") {
        echo chr(ord("A") + date('d', strtotime($data['in_time']))) . $no_cell . " - " . chr(ord("A") + date('d', strtotime($data['in_time']))) . ". " . "Libur <br>";
    }
    $alphabet_start++;
    $no_cell++;
    $data['user_id']++;
}