Php 要在首次登录时插入而不是更新它吗
嗨,这是我更新考勤系统的代码,但我不知道如何第一次插入考勤。我应该在哪里使用insert查询?它还显示错误和不更新表。有人请引导我Php 要在首次登录时插入而不是更新它吗,php,html,Php,Html,嗨,这是我更新考勤系统的代码,但我不知道如何第一次插入考勤。我应该在哪里使用insert查询?它还显示错误和不更新表。有人请引导我 <?php $connection=mysql_connect("localhost","root","") ordie(mysql_error() $db=mysql_select_db("Project") or die(mysql_error()); $sql = "SELECT Fac_name FROM Faculty ORD
<?php
$connection=mysql_connect("localhost","root","") ordie(mysql_error()
$db=mysql_select_db("Project") or die(mysql_error());
$sql = "SELECT Fac_name FROM Faculty ORDER BY Fac_name ASC ";
$result=mysql_query($sql);
$count=mysql_num_rows($result);
?>
<form name="Attendence" method="post" action="A.php">
<table style="text-align: left; padding: 5px;" cellpadding="0px" cellspacing="0px">
<tbody>
<tr>
<th style="text-align: center; padding: 5px; border: 1px #000000 solid;">Faculty Name</th>
<th style="text-align: center; padding: 5px; border: 1px #000000 solid;">Abesent</th>
<th style="text-align: center; padding: 5px; border: 1px #000000 solid;">Present</th>
<th style="text-align: center; padding: 5px; border: 1px #000000 solid;">Total present</th>
</tr>
<?php
while($rows=mysql_fetch_array($result)) {
?>
<tr>
<td class="table1">
<? $id[] = $rows['Fac_name']; ?><? echo $rows['Fac_name'];?>
</td>
<td class="table1">
<input name="date[<? echo $rows['Fac_name']; ?>]" type="text" >
</td>
<td id="present">
<input type="radio" name="Present[<? echo $rows['Fac_name']; ?>]" checked="checked" >Present
</td>
<td id="absent">
<input type="radio" name="Absent[<? echo $rows['Fac_name']; ?>]" value="ABSENT">Absent
</td>
<td style="text-align: left; padding: 5px; border: 1px #000000 solid; height: 33px;"></td>
</tr>
<?php }?>
<tr>
<td colspan="7" style="vertical-align:middle; text-align: center;">
<br><br>
<input id="Submit" type="submit" name="Submit" value="Insert" style="text-align: center; background-color: #000000; color: #ffffff; border: 1px #000000 solid;">
</td>
</tr>
</tbody>
</table>
</form>
<?php
if(isset($_POST['Submit'])) {
foreach($_POST['Present'] as $id => $value) {
$date=$_POST['date'];
$present=$_POST['Present'];
$absent=$_POST['Absent'];
$sql = "INSERT INTO Attendence(Fac_name, date, Present, Absent) VALUES ('".$id."', '$date[$value]', '$present[$value]', '$absent[$value]', '".$value."') ";
$result = mysql_query($sql);
}
}
if($result) {
//header("location:A.php");
} else {
//print_r ($_POST);
echo "Your entry is not completed at this time.............";
}
if(isset($_POST['submitattend'])) {
set_time_limit(0);
$class1 = $_SESSION['bra'];
$q3 = mysql_query("Select Id from `Faculty` order by `Id` ASC"); // get all roll numbers
$count = mysql_num_rows($q3);
$j = 1;
while($q4 = mysql_fetch_array($q3)) {
if(isset($_POST['chk'.$j])) {
$v2 = $q7['finalattend']+1; //total attendance of student
$v3 = $q7['totalattend']+1; //total attendance taken by teacher
mysql_query("UPDATE `Attendence` SET `finalattend`='".$v2."', `totalattend`='".$v3."' where `attenduser`='".$v1."'") or die(mysql_error());
} else {
$v2=$q7['totalattend']+1;
mysql_query("UPDATE `Attendence` SET `totalattend`='".$v2."' where `attenduser`='".$v1."'") or die(mysql_error());
}
$j=$j+1;
}
header("Location: 12.html"); //logout after taking attendance..
}
?>
我认为您的插入查询行有语法错误,请更正它。您只有三个行名-Fac_name、date、Present、缺席,但插入了5个值。此外,引号没有正确使用。它们不再得到维护。看到了吗?相反,学习,并使用or-将帮助您决定哪一个。如果选择PDO,。脚本中会出现两个SQL语法错误。如果计数大于0,则可以查找用户是否存在任何记录,然后必须更新else insert。
$date_value = $date[$value];
$present_value = $present[$value];
$absent_value = $absent[$value];
$check_result = mysql_query("selct count(*) from Attendence where Fac_name = '$id' AND date = '$date_value' AND Present = '$present_value' AND Absent = '$absent_value' ");
if($check_result == 0)
{
// insert query
}
else
{
// update query
}