当我单击更新时，页面只会刷新，值不会更新。我在数据库中有4个表，即-> stud，country_master_academic，master_state，master_city。在控制台中，当我单击“更新”按钮时，值不显示。
我的update.php页面
<div class="container" style="width:700px;height:1100px;margin-top:10%;box-shadow:4px 3px 3px 3px grey;margin-left:25%;background-color:#eaf2fa;padding:3%;">
<h4 style="font-weight:bold;"><span class="glyphicon glyphicon-edit"></span>Update Student</h4>
<div class="form-group">
<label for="photo"></label>
<?php
$img = "images/".trim($vrow["photo"]);
echo '<img src='.$img.' id="resultedPhoto" class="image" style="margin-left:75%;margin-top:2%;width:120px;height:120px;border:2px solid #bbbbbb;border-radius:10px;">';
?><br/>
<input type="file" name="upphoto" id="upphoto" style="margin-left:70%;" required />
</div>
<form class="form-horizontal" name="form1" id="form1" method="post" action="<?php $_PHP_SELF?>" enctype="multipart/form-data">
<div class="form-group">
<label for="no"><span class="glyphicon glyphicon-lock"></span><b> Student No: </b></label>
<input type="text" class="form-control" name="upno" id="upno" disabled value="<?php echo $vrow['stud_no'];?>" required />
</div>
<div class="form-group">
<label for="name"><span class="glyphicon glyphicon-user"></span><b> Student Name: </b></label>
<input type="text" class="form-control" name="upname" id="upname" value="<?php echo $vrow['stud_name'];?>" required pattern="[a-zA-Z]{3,}" title="Name should only contain letters and atleast 3 letters"/>
</div>
<div class="form-group">
<label for="no"><span class="glyphicon glyphicon-phone"></span><b> Mobile No: </b></label>
<input type="text" class="form-control" value="<?php echo $vrow['mobile']; ?>" name="upmob_no" required id="upmob_no" pattern="[0-9]{10}" title="Mobile number should be of 10 digits"/>
</div>
<div class="form-group">
<label for="dob"><span class="glyphicon glyphicon-calendar"></span><b> Birth Date: </b></label>
<input type="date" required class="form-control" value="<?php echo $vrow['dob'];?>" name="updob" id="updob" />
</div>
<div class="form-group">
<label for="add"><span class="glyphicon glyphicon-map-marker"></span><b> Address: </b></label>
<textarea rows="4" cols="33" class="form-control" name="upadd" id="upadd" required><?php echo $vrow['address'];?></textarea>
</div>
<div class="form-group">
<label for="gen"><b> Gender: </b></label>
<input type="radio" name="gender" id="genderMale" value="M"<?php echo ($vrow['gender']=='M')?'checked':' ' ?> required="required">Male
<input type="radio" name="gender" id="genderFemale" value="F"<?php echo ($vrow['gender']=='F')?'checked':' ' ?> required="required">Female
</div>
<div class="form-group">
<label for="cntry"><span class="glyphicon glyphicon-map-marker"></span><b> Country: </b></label>
<select required name="upcountry" id="upcountry" class="form-control">
<option value="">Select</option>
<?php
$country="SELECT * from country_master_academic";
$res= $conn->query($country);
if($res->num_rows>0){
while($row=$res->fetch_assoc()){
if($row["country_name"]==$vcountry or $vrow['country'] == $row["country_code"] )
{
echo '<option value='.$row["country_code"].' selected>'.$row["country_name"].'</option>';
}
else
{
echo '<option value='.$row["country_code"].'>'.$row["country_name"].'</option>';
}
}
}
?>
</select>
</div>
<div class="form-group">
<label for="state"><span class="glyphicon glyphicon-map-marker"></span><b> State: </b></label>
<select required name="upstate" id="upstate" class="form-control">
<option value="">Select</option>
<?php
$state="SELECT * from master_state";
$res= $conn->query($state);
if($res->num_rows>0){
while($row=$res->fetch_assoc()){
if($row["state_name"]==$vstate or $vrow['state'] == $row["state_code"] )
{
echo '<option value='.$row["state_code"].' selected>'.$row["state_name"].'</option>';
}
else
{
echo '<option value='.$row["state_code"].'>'.$row["state_name"].'</option>';
}
}
}
?>
</select>
</div>
<div class="form-group">
<label for="city"><span class="glyphicon glyphicon-map-marker"></span><b> City: </b></label>
<select required name="upcity" id="upcity" class="form-control">
<option value="">Select</option>
<?php
$city="SELECT * from master_city";
$res= $conn->query($city);
if($res->num_rows>0){
while($row=$res->fetch_assoc()){
if($row["city_name"]==$vcity or $vrow['city'] == $row["city_code"] )
{
echo '<option value='.$row["city_code"].' selected>'.$row["city_name"].'</option>';
}
else
{
echo '<option value='.$row["city_code"].'>'.$row["city_name"].'</option>';
}
}
}
?>
</select>
</div>
<br/>
<div class="form-group">
<button type="submit" name="update" id="update" style="font-weight:bold;" class="btn btn-primary">Update</button>
</div>
</form>
</div>
upresult.php页面
<?php
include("connection.php");
$no=trim($_POST['upno']);
$name=trim($_POST['upname']);
$mob=trim($_POST['upmob_no']);
$dob=trim($_POST['updob']);
$add=trim($_POST['upadd']);
$photo=trim($_FILES['upphoto']['name']);
$gen=trim($_POST['gender']);
$cn=trim($_POST['upcountry']);
$st=trim($_POST['upstate']);
$ct=trim($_POST['upcity']);
$qry="update stud set stud_name='".$name."',mobile='".$mob."',dob='".$dob."',address='".$add."',gender='".$gen."',country='".$cn."',state='".$st."',city='".$ct."' where stud_no='".$no."'";
$data=mysqli_query($conn,$qry);
if($data)
{
echo '<script language="javascript">';
echo 'alert("Updated Successfully")';
echo '</script>';
}
else {
echo '<script language="javascript">';
echo 'alert("Cannot update record")';
echo '</script>';
}
？>
jquery
$(document).ready(function(){
$("#form1").submit(function(event){
event.preventDefault();
var formData = new FormData(this);
$.ajax({
url:"upresult.php",
type:"POST",
data:{formData:formData},
async:true,
success:function(data) {
alert(data);
},
cache:false,
contentType:false,
processData:false
});
});
});
谢谢。
答案 0 :(得分：0)
请勿使用相同的名称
data:{stud_no:stud_no}, //here change the name of vbl or value
data:{
formData:formData, //here change the name of vbl or value
stud_no:stud_no, //here change the name of vbl or value
}