好了,我试图解决从上周这个问题,并没有找到一个解决办法我问的问题这么多次,但没能得到的代码工作,所以我把所有的细节在这一个问题。
我生成PHP与MySQL查询的HTML表(表看起来像这样Table)
DB ID EmpID Date Username Computername State Minutesatstate Statestarttime Stateendtime Timestamp
704634 303836 02-06-2019 user PC-818 Idle 2 13:44 13:46 2019-02-06 13:46:46
704599 303836 02-06-2019 user PC-818 Active 16 13:28 13:44 2019-02-06 13:44:46
704340 303836 02-06-2019 user NIPL-1220 Active 2 13:27 13:28 2019-02-06 13:28:48
704313 303836 02-06-2019 user PC-818 Active 13 13:15 13:27 2019-02-06 13:27:31
我想补充的PHP或jQuery的或JavaScript的另一列减去Statestarttime
第一排与第二排的Stateendtime
列的列找出时间差。
我只是想显示在页面上最小差异列。
例如预期的结果
StateStarTtime StateEndTime Min Difference
03:57 03:58 00:03
03:53 03:54 00:04
03:46 03:49 null
我能找到这么多例子,帮助第一行从StateEndTime减去StateStarTtime,但我想减去StateEndTime的第二行单元格值StateStarTtime的第1行单元格值找到分差。
我在HTML和PHP初学者,但完全新的JS / JQ等我怎么能做到这一点的任何方向是非常赞赏。下面是PHP和HTML代码片断我使用。让我知道如果你想要完整的代码。
从MySQL中获取数据
<?php
if(isset($_POST['search']))
{
$valueToSearch = $_POST['valueToSearch'];
$query = "SELECT * FROM time WHERE DATE_SUB(CURDATE(),INTERVAL 7 DAY) <= Timestamp AND EmpID='".$valueToSearch."' ORDER BY `time`.`Timestamp` DESC";
$search_result = filterTable($query);
}
else {
$query = "SELECT * FROM time WHERE DATE_SUB(CURDATE(),INTERVAL 1 DAY) <= Timestamp ORDER BY `time`.`Timestamp` DESC";
$search_result = filterTable($query);
}
function filterTable($query)
{
$connect = mysqli_connect("localhost", "root", "", "timetracker");
$filter_Result = mysqli_query($connect, $query);
return $filter_Result;
}
?>
表PHP代码
<?php while($row = mysqli_fetch_array($search_result)):?>
<tr>
<td align="Center"><?php echo $row['id'];?></td>
<td align="Center"><?php echo $row['EmpID'];?></td>
<td align="Center"><?php echo $row['Date'];?></td>
<td align="Center"><?php echo $row['Username'];?></td>
<td align="Center"><?php echo $row['Computername'];?></td>
<td align="Center"><?php echo $row['State'];?></td>
<td align="Center"><?php echo $row['MinutesatState'];?></td>
<td align="Center"><?php echo $row['StateStarttime'];?></td>
<td align="Center"><?php echo $row['StateEndtime'];?></td>
<td align="Center"><?php echo $row['Timestamp'];?></td>
</tr>
<?php endwhile;?>
试图解决方案 - 1
<?php while($row = mysqli_fetch_array($search_result)):?>
<?php $startTime[] = $row['StateStarttime'];?>
<?php $endTime[] = $row['StateEndtime'];?>
<?php endwhile;?>
<?php
$i = 0;
while($row = mysqli_fetch_array($search_result)):?>
<tr>
<td align="Center"><?php echo $row['id'];?></td>
<td align="Center"><?php echo $row['EmpID'];?></td>
<td align="Center"><?php echo $row['Date'];?></td>
<td align="Center"><?php echo $row['Username'];?></td>
<td align="Center"><?php echo $row['Computername'];?></td>
<td align="Center"><?php echo $row['State'];?></td>
<td align="Center"><?php echo $row['MinutesatState'];?></td>
<td align="Center"><?php echo $row['StateStarttime'];?></td>
<td align="Center"><?php echo $row['StateEndtime'];?></td>
<td align="Center"><?php echo $row['Timestamp'];?></td>
//your calculation goes here like diff
<td align="Center">
<?php
$mycalc = ($startTime[$i] - $endTime[$i+1]);
echo $mycalc;
?>
</td>
</tr>
$i++;
<?php endwhile;?>
试图解决方案 - 2
<?php for($i = 0; $i < count($results); $i++): ?>
<?php
$datetime1 = DateTime::createFromFormat('i:s', $results[$i]['StateStarttime']);
$datetime2 = DateTime::createFromFormat('i:s', $results[$i+1]['StateEndtime']);
if($datetime2)
$interval = $datetime1->diff($datetime2)->format('%I:%S');
else
$interval = 'unknown';
?>
<tr>
<td align="Center"><?php echo $results[$i]['id'];?></td>
<td align="Center"><?php echo $results[$i]['EmpID'];?></td>
<td align="Center"><?php echo $results[$i]['Date'];?></td>
<td align="Center"><?php echo $results[$i]['Username'];?></td>
<td align="Center"><?php echo $results[$i]['Computername'];?></td>
<td align="Center"><?php echo $results[$i]['State'];?></td>
<td align="Center"><?php echo $results[$i]['MinutesatState'];?></td>
<td align="Center"><?php echo $results[$i]['StateStarttime']; ?></td>
<td align="Center"><?php echo $results[$i]['StateEndtime']; ?></td>
<td align="Center"><?php echo $results[$i]['Timestamp'];?></td>
<td align="Center"><?php echo $interval; ?></td>
</tr>
<?php endfor; ?>
之前,任何人都建议我这个
<td align="Center"><?php echo($row['StateEndtime'] - $row['StateStarTtime ']) ?></td>
这会给我StateStarTtime
和StateEndtime
的微小差别在同一行,我想减去StateStarTtime
的第二行单元格值StateEndTime
的第一行单元格值等找到分差英寸
尝试沿着此线的东西。只是指导,真正实行由你。此外,我会建议你使用{}
而非endwhile
。
<?php
$last_row = $mysqli_fetch_array($search_result));
while($row = mysqli_fetch_array($search_result)){
//this is pseudocode, you will need to convert to date objects
$timediff = $last_row['StateStarttime'] - $row['StateEndtime'];
?>
<tr>
<td align="Center"><?php echo $row['id'];?></td>
<td align="Center"><?php echo $row['EmpID'];?></td>
<td align="Center"><?php echo $row['Date'];?></td>
<td align="Center"><?php echo $row['Username'];?></td>
<td align="Center"><?php echo $row['Computername'];?></td>
<td align="Center"><?php echo $row['State'];?></td>
<td align="Center"><?php echo $row['MinutesatState'];?></td>
<td align="Center"><?php echo $row['StateStarttime'];?></td>
<td align="Center"><?php echo $row['StateEndtime'];?></td>
<td align="Center"><?php echo $row['Timestamp'];?></td>
// echo $timediff
</tr>
<?php
$last_row = $row;
}?>