我想显示表中的所有行，并且我想在显示日期选项的每一行中获得更新按钮。但我得到以下错误：
未定义的索引br，rg，批次
我没有得到我错的地方。我正在给我的代码。当我单击相应行中的更新按钮时，SQL表将使用相应date的相应rollnumber进行更新。
<html>
<head>
<link rel="stylesheet" type="text/css" href="header.css" />
<script src="jquery.min.js"></script>
<link href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/themes/base/jquery-ui.css" rel="stylesheet" type="text/css"/>
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"> </script>
<script>
$( function() {
$( ".date" ).datepicker({dateFormat:'yy-mm-dd'});
} );
</script>
<style>
body
{
background-color: #FFFFF2;
}
.date
{
width:70px;
}
.design
{
border: 1px solid red;
border-collapse:collapse;
text-align:center;
}
tr
{
height:35px;
}
th
{
background-color:lightgreen;
border: 1px solid red;
height:50px;
}
td
{
border: 1px solid red;
font-size:13px;
height:10px;
}
.design tr:hover
{
background-color:#FFA600;
font-weight:bold;
}
</style>
</head>
<?php
include('connect.php');
$br=$_POST['branch'];
$rg=$_POST['reg'];
$batch=$_POST['batch'];
$br1=0;
$year=0;
$sem=0;
if($rg=='R13')
{
if($br==1)
{
$br1="CIVIL";
}
else if($br==2)
{
$br1="EEE";
}
else if($br==3)
{
$br1="MECH";
}
else if($br==4)
{
$br1="ECE";
}
else if($br==5)
{
$br1="CSE";
}
else
{
$br1="IT";
}
echo"<center><u><h2>Degree Eligibility List($br1) ($batch batch)</h2></u></center>";
$sl=1;
$i=1;
$k=0;
$mrk=0;
$int=0;
$ext=0;
$bl=0;
$marks=0;
$total=0;
$crd=0;
$per=0;
$grade=0;
echo"<center><table class='design'>";
echo"<thead><th>S.No</th>
<th>Roll Number</th>
<th>Obtained</th>
<th>MaxMarks</th>
<th>Percent</th>
<th>credits</th>
<th>Backlogs</th>
<th>Eligibility</th>
<th>PC mode</th>
<th>PC apply date</th>
<th>PC recieve date</th>
</thead>";
$sql1="select rollno from pc where branch='$br' and batch='$batch'";
$ret1=mysql_query($sql1);
while($row1=mysql_fetch_array($ret1))
{
//echo"<tr>";
//echo"<td>".$sl++."</td>";
$rno=$row1['rollno'];
$sql="select * from data where rollno='$rno' order by year asc, sem asc, subcode asc, my desc, type desc";
$ret=mysql_query($sql);
while($row=mysql_fetch_array($ret))
{
$int=$row['internal'];
$ext=$row['external'];
$j=$row['credits'];
$temp=$row['subcode'];
if(strcmp($temp,$k)<>0)
{
$sql2="select * from sforms where scode='$temp'";
$ret_sub=mysql_query($sql2);
$row_fetch=mysql_fetch_array($ret_sub);
$max=$row_fetch['maxmarks'];
if($row['external']=='-1')
{
$mrk=$int;
}
else
{
$mrk=$row['internal']+$row['external'];
}
if($j==0)
{
$bl++;
$marks=$marks+$mrk;
$total=$total+$max;
}
else
{
$marks=$marks+$mrk;
$total=$total+$max;
$crd=$crd+$j;
}
$k=$temp;
}
}
if($total<>0)
{
$per=round(($marks/$total)*100,2);
echo"<tr>";
echo"<td>".$sl++."</td>";
echo"<td>$rno</td>";
echo"<td>$marks</td>";
echo"<td>$total</td>";
echo"<td>$per</td>";
echo"<td>$crd</td>";
echo"<td>$bl</td>";
if($bl==0)
{
echo"<td>Eligible</td>";
echo"<td><form method='post' action=''>
<select name='mode' required>
<option value=''>--select--</option>
<option value='T'>Tatkal</option>
<option value='C'>College</option>
</select></td>";
echo"<td><input type='text' name='date' class='date' required><input type='submit' name='Submit' class='submit' value='Update' /></form></td><td></td></tr>";
}
else
{
echo"<td></td><td></td><td></td><td></td></tr>";
}
}
$marks=0;
$total=0;
$per=0;
$bl=0;
$crd=0;
}
echo"</table></center>";
}
答案 0 :(得分：0)
//使用此代码编辑按钮..
<td><a href="set your url.." title="Edit" style="color:blue;font-size: 16px;color: #1caadc;font-weight: bolder;"><i class="fa fa-pencil-square-o"></i>
</a></td>
答案 1 :(得分：0)
$br=$_POST['branch'];
$rg=$_POST['reg'];
$batch=$_POST['batch'];
尝试打印这些值并检查。确保从表单中传递值。