我想从数据库中获取数据并相应地水平和垂直打印。我有一个项目表，每个项目内可以有多个进程。对于每个流程，都有许多指定的人员。 所以我所做的就是首先获取有关项目的信息:
// 1.Get data
// data for final table
$result = [];
// map project no to its title
$projectNoToTitle = [];
$sql = '
SELECT projectNo, code, title
FROM `project`
ORDER BY projectNo
';
$query = mysqli_query($conn, $sql);
然后，对于每个项目，我尝试获取流程并计算每个 user_type 中的人数:
// for each process
while ($data = mysqli_fetch_assoc($query)) {
$sql2 = '
SELECT projectNo, process, GROUP_CONCAT(col separator "+") as `count`
FROM
(
SELECT projectNo, process, concat(count(*),"(",user_type,")") as `col`
FROM
(
(
SELECT * FROM proc_leader t1
LEFT JOIN
(
SELECT username, user_type FROM user GROUP BY username
) t2 ON t1.proc_leader = t2.username GROUP BY t1.proc_leader
)
UNION
(
SELECT * FROM proc_checker t1
LEFT JOIN
(
SELECT username, user_type FROM user GROUP BY username
) t2 ON t1.proc_checker = t2.username GROUP BY t1.proc_checker
)
UNION
(
SELECT * FROM proc_staff t1
LEFT JOIN
(
SELECT username, user_type FROM user GROUP BY username
) t2 ON t1.proc_staff = t2.username GROUP BY t1.proc_staff
)
) AS a GROUP BY projectNo, process, user_type
) t GROUP BY projectNo, process
';
$query2 = mysqli_query($conn, $sql2);
// for each project => process pair of user
while ($data2 = mysqli_fetch_assoc($query2)) {
$projectN = $data['projectNo'];
$code = $data['code'];
$title = $data['title'];
$projectNo = $data2['projectNo'];
$process = $data2['process'];
$count = $data2['count'];
$projectNoToTitle[$projectNo] = $process;
if (!isset($result[$title])) {
$result[$title] = [ 'code' => $code, 'projects' => []];
}
if (!isset($result[$title]['projects'][$projectNo])) {
$result[$title]['projects'][$projectNo] = [];
}
if ($count) {
$result[$title]['projects'][$projectNo][] = $count;
}
}
}
然后我尝试打印我的表格:
<table>
<?php
// 2. Output table
// create table header
// it's columns should contain all processes
if ($result)
{
$header =
'<th>Code</th>
<th>Title</th>' .
array_reduce(array_values($projectNoToTitle), function ($p, $n) {
return $p . '<th>Process ' . htmlspecialchars($n) . '</th>';
});
// output body
$body = '';
foreach ($result as $title => $titleData)
{
$row = '<td>' . htmlspecialchars($titleData['code']) . '</td>' . '<td>' . htmlspecialchars($title) . '</td>';
foreach ($projectNoToTitle as $projectNo => $projectTitle)
{
$r = isset($titleData['projects'][$projectNo])
? implode(', ', $titleData['projects'][$projectNo])
: 'N/A';
$row .= '<td>' . htmlspecialchars($r) . '</td>';
}
$body .= "<tr>$row</tr>";
}
echo "<thead>$header</thead><tbody>$body</tbody>";
}// \2. Output table
?>
</table>
我的预期输出是:
| projectNo | code | title | Process ANM BGR | Process BLD COL |Process BGA CDP |
+-----------+------+-----------+-----------------+-----------------+----------------+
| 170001 | pr1 | Project1 | 1(FT)+1(CT) | 1(AP) | |
| 170002 | pr2 | Project2 | | | 1(CT) |
但我得到的是:
| projectNo | code | title | Process BGD COL | Process BGA CDP |
+-----------+------+-----------+---------------------------+---------------------------+
| 170001 | pr1 | Project1 | 1(CT)+1(FT), 1(AP) | 1(CT) |
| 170002 | pr2 | Project2 | 1(CT)+1(FT), 1(AP) | 1(CT) |
如何将每个进程排列为列？谢谢您
编辑
项目表的表:
project table:
| projectNo | code | title |
+-----------+------+----------+
| 170001 | pr1 | Project1 |
| 170002 | pr2 | Project2 |
process table:
| projectNo | process |
+-----------+---------+
| 170001 | ANM BGR |
| 170001 | BGD COL |
| 170002 | BGA CDP |
username table:
| uid | username | user_type|
+-----+------------+----------+
| 1 | AARONJAMES | CT |
| 2 | ADELINE | AP |
| 3 | AARONKOH | CT |
| 4 | AHMAD | FT |
proc_leader table:
| projectNo | process | proc_leader|
+-----------+---------+------------+
| 170001 | ANM BGR | AARONJAMES |
| 170001 | BGD COL | ADELINE |
| 170002 | BGA CDP | AARONKOH |
proc_checker table:
| projectNo | process | proc_checker |
+-----------+---------+--------------+
| 170001 | ANM BGR | AARONJAMES |
| 170001 | BGD COL | AARONJAMES |
| 170002 | BGA CDP | AARONKOH |
proc_staff table:
| projectNo | process | proc_staff |
+-----------+---------+------------+
| 170001 | ANM BGR | AHMAD |
编辑2
更新答案后我得到的是:
正如您所看到的，过程是重复的。但我需要它在 1 列以下。
像这样:
| projectNo | code | title | Process ANM BGR | Process BLD COL |Process BGA CDP |
+-----------+------+-----------+-----------------+-----------------+----------------+
| 170001 | pr1 | Project1 | 1(FT)+1(CT) | 1(AP) | |
| 170002 | pr2 | Project2 | 2(CT) | | 1(CT) |
最佳答案
据我所知，当从不同的表中获取数据时，您正在 while 循环内执行 while 循环，我认为在这种情况下很难同时跟踪和合并它们。 所以我建议，首先从项目表中获取所有数据，然后进行处理。
例如
/** start for getting projects **/
$query = 'SELECT projectNo, code, title
FROM `project`
ORDER BY projectNo';
$res = $con->query($query);
$projects = [];
while ($data = $res->fetch_assoc()) {
$projects[] = $data;
}
/** end for getting projects **/
然后执行另一个查询以从不同的表获取数据并执行 while 循环。 因此，一旦获得所需的所有数据，您就可以在 html 上制作表格时轻松合并它们。
检查我的工作代码:
/** start for getting projects **/
$query = 'SELECT projectNo, code, title
FROM `project`
ORDER BY projectNo';
$res = $con->query($query);
$projects = [];
while ($data = $res->fetch_assoc()) {
$projects[] = $data;
}
/** end for getting projects **/
$titles = array();
$query = 'SELECT projectNo, process, GROUP_CONCAT(col separator "+") as `count`
FROM
(
SELECT projectNo, process, concat(count(*),"(",user_type,")") as `col`
FROM
(
(
SELECT * FROM proc_leader t1
LEFT JOIN
(
SELECT username, user_type FROM user GROUP BY username
) t2 ON t1.proc_leader = t2.username GROUP BY t1.proc_leader
)
UNION
(
SELECT * FROM proc_checker t1
LEFT JOIN
(
SELECT username, user_type FROM user GROUP BY username
) t2 ON t1.proc_checker = t2.username GROUP BY t1.proc_checker
)
UNION
(
SELECT * FROM proc_staff t1
LEFT JOIN
(
SELECT username, user_type FROM user GROUP BY username
) t2 ON t1.proc_staff = t2.username GROUP BY t1.proc_staff
)
) AS a GROUP BY projectNo, process, user_type
) AS t GROUP BY projectNo, process';
$res = $con->query($query);
/** process the data first and store to variables and arrays **/
while ($data = $res->fetch_assoc()) {
$projectNo = $data['projectNo'];
$processName = $data['process'];
$titles[] = $processName;
$count = $data['count'];
if (!isset($allProcess[$projectNo]))
$allProcess[$projectNo] = [];
if ($count)
$allProcess[$projectNo][$processName] = $count;
}
?>
<style>
table, th, td {
border: 1px solid #000;
}
</style>
<table>
<?php
/** now do the printing of data **/
if ($allProcess) {
$header =
'<th>ProjectNo</th>
<th>Code</th>
<th>Title</th>' .
array_reduce(array_values($titles), function ($p, $n) {
return $p . '<th>Process ' . htmlspecialchars($n) . '</th>';
});
$body = '';
/** loop through projects first instead **/
foreach ($projects as $p) {
$body .= '<tr>';
$body .= '<td>' . htmlspecialchars($p['projectNo']) . '</td>' . '<td>' . htmlspecialchars($p['code']) . '</td>' . '<td>' . htmlspecialchars($p['title']) . '</td>';
/** loop through titles or all process **/
foreach ($titles as $t) {
$row = $allProcess[$p['projectNo']]; // e.g. Array ( [process] => Array ( [170001]...
$r = isset($row) && isset($row[$t]) ? $row[$t] : 'N/A';
$body .= '<td>' . htmlspecialchars($r) . '</td>';
}
$body .= '</tr>';
}
echo "<thead>$header</thead><tbody>$body</tbody>";
}
?>
</table>
截图:
尽管上面的代码仍有一些可以改进的地方，但这应该可以让您快速开始。
更新
关于获取相同的两列，您可以添加 $titles = array_unique($titles); 来删除重复的列。您将其放在 while ($data = $res->fetch_assoc()) { block 之后。
/** process the data first and store to variables and arrays **/
$rows = [];
while ($data = $res->fetch_assoc()) {
$rows[] = $data;
$projectNo = $data['projectNo'];
$processName = $data['process'];
$titles[] = $processName;
$count = $data['count'];
if (!isset($allProcess[$projectNo]))
$allProcess[$projectNo] = [];
if ($count)
$allProcess[$projectNo][$processName] = $count;
}
$titles = array_unique($titles); // the fix
关于php - 水平获取数据到html表格中，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/41800711/