Question

我有一个php页面，可让我选择日期，然后运行一个查询，执行一些操作，然后使用数据生成临时表。下一步，我想在页面上显示该数据。但是，连接已关闭，因此数据消失。

如何在删除表之前提取该数据。我需要删除表，以便我可以使用稍微不同的变量再次运行查询，当我使用regualr表时，我必须重新加载页面，而不是我的一些查询代码删除表。我试着在最后添加一个干净的查询，但我认为发布会让我感到困惑。

...

<?php

//创建表

$query   = "Drop TABLE if exists temp_pers;";
$query  .= "CREATE temp table temp_pers (seqid integer, Name character(90));";
$query  .= "INSERT INTO temp_pers (seqid, Name)
SELECT per_id, CONCAT('<a href=PersonView.php?PersonID=',per_ID,'>',per_FirstName,' ', per_LastName,'</a>')
    FROM person_per
    WHERE per_id in 
        (SELECT DISTINCT person_id 
            FROM event_attend, events_event
            WHERE events_event.event_type = $group_id and
            date(checkin_date) >= '$dStartDate' and
            date(checkin_date) <= '$dEndDate' and
            event_attend.event_id = events_event.event_id)
ORDER by per_LastName, per_FirstName
;";

#Dates Query
$query  .= "Drop TABLE if exists temp_dates ;";
$query  .= "CREATE temp table temp_dates (meet_date date);";
$query  .= "INSERT INTO temp_dates (meet_date)
SELECT DISTINCT date(event_start)
    FROM event_attend, events_event
    WHERE events_event.event_type = $group_id and
    date(checkin_date) >= '$dStartDate' and
    date(checkin_date) <= '$dEndDate' and
    event_attend.event_id = events_event.event_id
        ORDER BY 1;";
#Final query
$query  .= "Drop TABLE if exists pers_dates;";
$query  .= "CREATE temp table pers_dates (pers_id integer, pers_name character(90), pers_date date, pers_date_attend_ind character(1) NOT NULL default' ');";
$query  .= "INSERT INTO pers_dates(pers_id, pers_name, pers_date)
SELECT temp_pers.seqid, temp_pers.name, temp_dates.meet_date
FROM temp_pers, temp_dates
Where 1=1;";
#update the "y"
$query  .= "UPDATE pers_dates SET pers_date_attend_ind = 'Yes' 
            WHERE EXISTS (SELECT person_id, checkin_date From event_attend, events_event 
            WHERE events_event.event_type= $group_id and pers_id = person_id 
            and pers_date = date(checkin_date) 
            and event_attend.event_id = events_event.event_id);";






mysqli_multi_query($dbc, $query);

//显示表格

if(isset($_POST['AttendanceSubmit'])){ // button name

    $query2 = mysql_query("SELECT pers_id , pers_name, pers_date, pers_date_attend_ind FROM pers_dates") or die(mysql_error());
    while($row = mysql_fetch_array($query2)) $rows[] = $row;
    foreach($rows as $key => $value)
    {
        $array[$value['pers_id']]['name'] = $value['pers_name'];
        $array[$value['pers_id']]['dates'][$value['pers_date']] = $value['pers_date_attend_ind'];
    }

    //$rowColor = "brown";
    function generate_table($array)
    {
        $html = '';
        foreach($array as $key => $value)
        {
            $html .= '<table border="1" width="100%" cellpadding="9">'; // start table inside the loop. It will looks better due to each member may have different number of date count.
            $html .= '<tr bgcolor="#F3E2A9">';
            $html .= '<td width="10%">&nbsp;</td>';
            foreach($value['dates'] as $k => $v)
            {
                //Date of meeting
                $html .= '<td>' .' '. $k .' '. '</td>';
            }
            $html .= '</tr>';
            $html .= '<tr>';
            //Person name
            $html .= '<td align="center">' . $value['name'] . '</td>';
            foreach($value['dates'] as $v)
            {
                //attendance indicator
                $html .= '<td align="center">' . $v .' ' . '</td>';
            }
            $html .= '</tr>';
            $html .= '</table>';
        }
        return $html;
    }

    echo generate_table($array);


$clean="Drop TABLE temp_pers, temp_dates, pers_dates;";
mysqli_query($dbc,$clean);      


?>

在显示数据之前删除临时表

0 个答案: